Merge branch 'master' of github.com:LeCoupa/awesome-cheatsheets

2024-11-25 06:07:34 +00:00 · 2020-11-30 18:18:00 +01:00 · 2020-11-30 18:18:00 +01:00 · 61813a4812
commit 61813a4812
parent 08ffddee57 c689d6cbbf
12 changed files with 1104 additions and 44 deletions
--- a/README.md
+++ b/README.md
@ -28,6 +28,7 @@ Feel free to take a look. You might learn new things. They have been designed to
 - [C](languages/C.txt)
 - [C#](languages/C%23.txt)
 - [PHP](languages/php.php)
 - [JAVA](languages/java.md)
 #### Functional
@ -98,6 +99,7 @@ Feel free to take a look. You might learn new things. They have been designed to
 #### Development
 - [cURL](tools/curl.sh)
 - [Drush](tools/drush.sh)
 - [Elasticsearch](tools/elasticsearch.js)
 - [Emmet](tools/emmet.md)
 - [Git](tools/git.sh)
--- a/databases/mysql.sh
+++ b/databases/mysql.sh
@ -7,4 +7,20 @@ mysql -u username -p database_name < file.sql                         # Import d
 SHOW PROCESSLIST; # Show you any queries that are currently running or in the queue to run
-GRANT ALL ON mydb.* TO 'myuser'@'locahost'; # Grant **all** privileges on database
+# *****************************************************************************
 # Users and Privileges
 # *****************************************************************************
 # Replace 'host' with '%' to indicate any host
 CREATE USER 'user'@'host'; # Create user
 DROP USER 'user'@'host'; # Remove user.
 GRANT ALL PRIVILEGES ON base.* TO 'user'@'host' IDENTIFIED BY 'password'; # Grant access to database using password
 GRANT SELECT, INSERT, DELETE ON base.* TO 'user'@'host' IDENTIFIED BY 'password'; # Grant specific privileges to database using password
 GRANT ALL PRIVILEGES ON base.* TO 'user'@'host' WITH GRANT OPTION; # Grant **all** privileges on database
 REVOKE ALL PRIVILEGES ON base.* FROM 'user'@'host'; # Remove privileges on database
 REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'user'@'host'; # Remove **all** privileges on database
 FLUSH PRIVILEGES; # Use **only** if you modify grant tables directly using statements like INSERT, UPDATE or DELETE.
--- a/frontend/html5.html
+++ b/frontend/html5.html
@ -45,6 +45,11 @@
 <abbr></abbr>                                     <!-- Contains abbreviations while also making the full form avaialable -->
 <address></address>                               <!-- Used to display contact information -->
 <code></code>                                     <!-- Used to display inline code snippets -->
 <q></q>                                           <!-- Defines a short inline quotation -->
 <sub></sub>                                       <!-- 	Defines subscripted text -->
 <sup></sup>                                       <!-- Defines superscripted text -->
 <kbd></kbd>                                       <!-- Specifies text as keyboard input -->
 <small></small>                                   <!-- Specifies small text -->  
 <!-- Links Formatting -->
@ -176,6 +181,11 @@ width=""                                          <!-- Describes the width of th
 <time></time>                                     <!-- Identifies the time and date -->
 <wbr>                                             <!-- A line break within the content -->
 <!-- Some other useful tags -->
 <canvas></canvas>                                 <!-- Allows to draw 2D shapes on the web page with the help of javascript -->
 <keygen>                                          <!-- Represents a control for generating a public-private key pair -->
 <map></map>                                       <!-- Specifies an image map -->
 <!-- Collective Character Obejcts -->
--- a/languages/bash.sh
+++ b/languages/bash.sh
@ -95,6 +95,8 @@ genscript                     # converts plain text files into postscript for pr
 dvips <filename>              # prints .dvi files (i.e. files produced by LaTeX)
 grep <pattern> <filenames>    # looks for the string in the files
 grep -r <pattern> <dir>       # search recursively for pattern in directory
 head -n file_name | tail +n   # Print nth line from file.
 head -y lines.txt | tail +x   # want to display all the lines from x to y. This includes the xth and yth lines.
 ##############################################################################
@ -111,7 +113,7 @@ cd ..                         # changes to the parent directory
 cd <dirname>                  # changes directory
 cp -r <dir1> <dir2>           # copy <dir1> into <dir2> including sub-directories
 pwd                           # tells you where you currently are
-
+cd ~                          # changes to home.
 ##############################################################################
 # SSH, SYSTEM INFO & NETWORK COMMANDS
--- a/languages/java.md
+++ b/languages/java.md
@ -0,0 +1,619 @@
 ### HELLO WORLD :ghost:
 ```java
 //Text file name HelloWorld.java
 public class HelloWorld {
  // main() is the method
  public static void main (String[] arfs)
    //Prints "Hello World" in the terminal window.
    System.out.pritn("Hello World");
 }
 ```
 ### COMPILATION & EXECUTING JAVA CODE
 * Goto your program directory in terminal (Assumed JAVA Path is set)
 * After for compile your code
 > **javac HelloWorld.java (your program file name)**
 * For run program 
 > **java HelloWorld (main class name)**
 ### DATA TYPES
 |   Type  |      Set of values      |            Values            | Operators |
 |:-------:|:-----------------------:|:----------------------------:|:---------:|
 |   int   |         integers        | between -2^31 and + (2^31)-1 | + - * / % |
 |  double |  floating-point numbers |         real numbers         |  + - * /  |
 | boolean |      boolean values     |         true or false        | && \|\| ! |
 |   char  |        characters       |                              |           |
 |  String | sequences of characters |                              |           |
 ### DECLARATION AND ASSIGNMENT STATEMENTS
 ```java
 //Declaration statement
 int a,b;
 //Assignment statement
 a = 13212; //a is the variable name; 13212 is the literal which is assign to the variable a
 //Initialization statement
 int c = a + b;
 ```
 ### COMPARISON OPERATORS
 | Operation |        Meaning        |
 |:---------:|:---------------------:|
 |     ==    |         equal         |
 |     !=    |       not equal       |
 |     <     |       less than       |
 |     >     |      greater than     |
 |     <=    |   less than or equal  |
 |     >=    | greater than or equal |
 ### PRINTING
 ```java
  String s = "Happy Coding Folks!!"
  void System.out.print(String s) //print s
  void System.out.println(String s) //print s, followed by a newline
  void System.out.println() //print a newline
 ```
 ### PARSING COMMAND-LINE ARGUMENTS
 ```java 
  String s = "Java is the best!!"
  int Integer.parseInt(String s) //convert s to an int value
  double Double.parseDouble(String) //convert s to a double value
  long Long.parseLong(String s) // convert s to a long value
 ````
 ### MATH LIBRARY
 ```java
  Public Class Math{
    double abs(double a)    // absolute value of a
    double max(double a, double b)  //maximum of a and b
    double min(double a, dobule a)  //minimum of a and b
    double sin(double theta) //sine of theta
    double cos(double theta) //cosine of theta
    double tan(double theta) //tangent of theta
    double toRadians(double degrees) // convert angle from degrees to radians
    double toDegreestouble radians)  // convert angle from radians to degrees
    double exp(doube a)  // exponential (e^a)
    double pow(double a, double p) //raise a to the bth power (a^b)
    double random() //random in [0,1)
    double sqrt(double a)  //square root of a
    }
 ```
 ### EXAMPLES OF TYPE CONVERSION
  |       Expression      | Expression type | Expression value |
 |:---------------------:|:---------------:|:----------------:|
 | (1 + 2 + 3 + 4) / 4.0 |      double     |        2.5       |
 |      Math.sqrt(4)     |      double     |        2.0       |
 |     "123343" + 99     |      String     |    "12334399"    |
 |       11 * 0.25       |      double     |       2.75       |
 |    (int) 11 * 0.25    |      double     |       2.75       |
 |    11 * (int) 0.25    |       int       |         0        |
 |   (int) (11 * 0.25)   |       int       |         2        |
 ### CONDITIONAL & LOOP STATEMENT
 #### ANATOMY OF CONDITIONAL STATEMENT
 > IF Statement
 ```java
  if (x>y) { // x > y is the boolean expression
   //Sequence of statements
   x = y;
  } 
 ```
 > IF-ELSE STATEMENT
 ```java
   if (BOOLEAN EXPRESSION) { 
   //Sequence of statements
   } else {
   //Sequence of statements
   }
 ```
 > NESTED IF STATEMENT
 ```java
   if (BOOLEAN EXPRESSION) { 
   //Sequence of statements
   } else if {
   //Sequence of statements
   }
   .
   .
   .
   else {
   //Sequence of statements
   }
 ```
 >SWITCH STATEMENT
 ```java
  switch (VARIABLE TO EVALUATE ITS VALUE) {
    case value: Statement; break;
    ...
    ...
    ...
    default: Statement; break;
  }
 ```
 **Example:**
 ```java
  int month = 8;
        String monthString;
        switch (month) {
            case 1:  monthString = "January";
                     break;
            case 2:  monthString = "February";
                     break;
            case 3:  monthString = "March";
                     break;
            case 4:  monthString = "April";
                     break;
            case 5:  monthString = "May";
                     break;
            case 6:  monthString = "June";
                     break;
            case 7:  monthString = "July";
                     break;
            case 8:  monthString = "August";
                     break;
            case 9:  monthString = "September";
                     break;
            case 10: monthString = "October";
                     break;
            case 11: monthString = "November";
                     break;
            case 12: monthString = "December";
                     break;
            default: monthString = "Invalid month";
                     break;
        }
 ```
 #### ANATOMY OF A LOOP  STATEMENT
 >FOR LOOP STATEMENT
 ```java
  for (declare and initialize a loop control variable; loop-continuation condition/s; increment or decrement of the variable of control)
  {
    //Statement
  }
 ``` 
 **Example:**
 ```java  
  for (int i = 0; i <= n; i++) {
     System.out.println(i);
  }
 ```
 > WHILE LOOP STATEMENT
 ```java
    while(condition){  //till condition will be true.
    //code to be executed 
    }
 ```
 **Example:**
 ```java
  //Initialization is a separate statement
  int power = 1;
  while ( power <= 10/2 ) // power <= n/2 is an example of the loop-continuation condition
  {
    System.out.println(power);
  }
 ```
 > DO-WHILE LOOP STATEMENT
 ```java
  do{ //always run one time even if condition would be false
    //Statement
  } while(loop-continuation condition);
 ```
 **Example:**
 ```java
    int i=1;  
    do{  
      System.out.println(i);  
      i++;  
    }while(i<=10); 
 ```
 ### ARRAY
 > ARRAY DECLARATION
 ```java
    int[]           ai;        // array of int
    short[][]       as;        // array of array of short
    short           s,         // scalar short
                    aas[][];   // array of array of short
    Object[]        ao;        // array of Object
    Collection<?>[] ca;  // array of Collection of unknown type
 ```
 > DECLARATION OF ARRAY VARIABLE
 ```java
  Exception ae[]  = new Exception[3];
  Object aao[][]  = new Exception[2][3];
  int[] factorial = { 1, 1, 2, 6, 24, 120, 720, 5040 };
  char ac[]       = { 'n', 'o', 't', ' ', 'a', ' ',
                      'S', 't', 'r', 'i', 'n', 'g' };
  String[] aas    = { "array", "of", "String", };
 ```
 ### ACCESS MODIFIERS
 1. defualt(No keyword required) 
 2. private
 3. public
 4. protected 
 ### NON ACCESS MODIFIERS
 1. static 
 2. final 
 3. transient
 4. abstract
 5. synchronized
 6. volatile 
 ## Object Oriented Programming (OOPs) Concept :clipboard:
 ### OBJECT
 ```java
  //Declare a variable, object name
  String s;
  //Invoke a contructor to create an object
  s = new String ("Hello World");
  //Invoke an instance method that operates on the object's value
  char c = s.chartAt(4);
 ```
 > INSTANCE VARIABLES
 ```java
  public class Charge {
    //Instance variable declarations
    private final double rx, ry;
    private final double q;
  }
 ```
 ### METHODS
 ```java
  public static double sum (int a, int b) { //double is the return type, sum is the method's name, a and b are two arguments of type int;
    int result; //local variable
    result = a + b;
    return result;//return statement;
  }
 ```
 ### CLASS DECLARATION
 ```java
 class MyClass {
    // field, constructor, and 
    // method declarations
 }
 ```
 **Example:**
 ```java
    public class Bicycle {
        // the Bicycle class has
        // three fields
        public int cadence;
        public int gear;
        public int speed;
        // the Bicycle class has
        // one constructor
        public Bicycle(int startCadence, int startSpeed, int startGear) {
            gear = startGear;
            cadence = startCadence;
            speed = startSpeed;
        }
        // the Bicycle class has
        // four methods
        public void setCadence(int newValue) {
            cadence = newValue;
        }   
        public void setGear(int newValue) {
            gear = newValue;
        }   
        public void applyBrake(int decrement) {
            speed -= decrement;
        }  
        public void speedUp(int increment) {
            speed += increment;
        }
 }
 ```
 >DECLARING CLASSESS IMPLEMENTATING AN INTERFACE AND EXTENDING PARENT CLASS
 ```java
 class MyClass extends MySuperClass implements YourInterface {
    // field, constructor, and
    // method declarations
 }
 ```
 * MyClass is a subclass of MySuperClass and that it implements the YourInterface interface.
 > CONSTRUCTORS
 * A class contains constructors that are invoked to create objects from the class blueprint.
 * Constructor declarations look like method declarations—except that they use the name of the class and have no return type
 * Each and every class has defualt No-args constructor.
 ```java
  public class Bicycle{
      private int gear;
      private int cadence;
      private int speed;
      public Bicycle(int startCadence, int startSpeed, int startGear) { //args-constructor
        gear = startGear;
        cadence = startCadence;
        speed = startSpeed;
      }
      public Bicycle(){//No-args constructor
        super();
      }
  }
 ```
 ### POLYMORPHISM
 * Polymorphism is the concept where an object behaves differently in different situations.
 *  There are two types of polymorphism 
    1. compile time polymorphism 
    2. runtime polymorphism.
 #### 1. Compile Time Polymorphism
 * Compile-time polymorphism is achieved by method overloading.
 * method overloading is creating multiple method with methods name is same and arguments are different. 
 ```java
  public class Circle {
    public void draw(){
      System.out.println("Drwaing circle with default color Black and diameter 1 cm.");
    }
    public void draw(int diameter){ //method draw() overloaded.
      System.out.println("Drwaing circle with default color Black and diameter"+diameter+" cm.");
    }
    public void draw(int diameter, String color){ //method draw() overloaded.
      System.out.println("Drwaing circle with color"+color+" and diameter"+diameter+" cm.");
    }
  }
 ```
 #### 2. Run Time Polymorphism
 * Run-time polymorphism is achieved by method overriding.
 * Runtime polymorphism is implemented when we have an **“IS-A”** relationship between objects.
 * method overriding is the subclass has to override the superclass method.
 ```java
    public interface Shape {
 	    public void draw();
    }
 ```
 ```java
    public class Circle implements Shape{
      @Override
      public void draw(){
        System.out.println("Drwaing circle");
      }
    }
 ```
 ```java
    public class Square implements Shape {
      @Override
      public void draw() {
        System.out.println("Drawing Square");
      }
    }
 ```
 * `Shape` is the superclass and there are two subclasses `Circle` and `Square`
 * Below is an example of runtime polymorphism.
 ```java
    Shape sh = new Circle();
    sh.draw();
    Shape sh1 = getShape(); //some third party logic to determine shape
    sh1.draw();
 ```
 ### INHERITANCE
 * Inheritance is the mechanism of code reuse. 
 * The object that is getting inherited is called the superclass and the object that inherits the superclass is called a subclass.
 * We use `extends` keyword in java to implement inheritance from class.
 * We use `implements` keyword in java to implement inheritance from interface.
 ```java
    public class Superclass{
      // methods and fields
    }
 ```
 ```java
    public interface Superinterface{
      // methods and fields
    }
 ```
 ```java
    public class Subclass extends Superclass implements Superinterface{
      // methods and fields
    }
 ```
 ### Abstraction
 * Abstraction is the concept of hiding the internal details and describing things in simple terms.
 * Abstraction can be achieved by two ways.
  1. Abstract Class
  2. Interface
 #### 1. Abstract Class
 * An abstract class must be declared with an `abstract` keyword.
 * It can have abstract and non-abstract methods.
 * It cannot be instantiated.
 * It can have constructors and static methods also.
 * It can have final methods which will force the subclass not to change the body of the method.
 ```java
    abstract class Flower{
        abstract String Smell(); //abstract method.
        String Oil(){  // non-abstract method. 
           System.out.println("Flower Oil is good.");
         }
    }
    public class Lily extends Flower{
        private String Smell(){ // implementation of abstarct method.
          System.out.println("Lily smell's lovender.");
        }
    }
 ```
 #### 2. Interface
 * Interface is a blueprint of a **class**.
 * It can have only abstract methods. [Except Java 8 and next versions.]
 * Since Java 8, we can have **default and static** methods in an interface.
 ```java
    interface print{  
        void printPaper();  
    }  
    public class A4 implements print{  
        public void printPaper(){
          System.out.println("A4 Page Printed. ");
        }  
    }
 ```
 ### Encapsulation
 * Encapsulation is used for access restriction to class members and methods.
 * Encapsulation is the technique used to implement abstraction in OOP.
 * As in encapsulation, the data in a class is hidden from other classes, so it is also known as **data-hiding**.
 * Encapsulation can be achieved by Declaring all the variables in the class as private and writing public methods in the class to set and get the values of variables.
 * Best example of Encapsulation is POJO (Plain-Java-Object-Class).
 ```java
    public class User {
        private String username;
        private String password;
        public String getUsername() {
          return username;
        }
        public void setUsername(String username) {
          this.username = username;
        }
        public String getPassword() {
          return password;
        }
        public void setPassword(String password) {
          this.password = password;
        }
    }
 ```
 ## ADVANCE DATA TYPE
 * **STACK DATA TYPE**
 ```java
  public class Stack<Item> implements Iterable <Item>
  Stack()   //create an empty stack
  boolean isEmpty() //return if the stack empty
  void push(Item item) // push an item onto the stack
  Item pop() //return and remove the item that was inserted most recently
  int size() //number of item on stack
 ```
 * **QUEUE DATA TYPE**
 ```java
  public class Queue<Item> implements Iterable<Item>
  Queue()  //create an emptyh queue
  boolean isEmpthy()  //return if the queue empthy
  void enqueue(Item item) // insert an item onto queue
  Item dequeue()  //return and remove the item that was inserted least recently
  int size() //number of item on queue
 ```
 * **ITERABLE**
 ```java
 //import Iterator
 import java.util.Iterator;
 public class Queue<Item> implements Iterable <Item> { 
 //FIFO queue
  private Node first;
  private Node last;
  private class Node {
    Item item;
    Node next;
  }
  public void enqueue (Item item)
  ...
  public Item dequeue()
  ...
 }
 ```
 * **SYMBOL TABLE DATA TYPE**
 ```java
  public class ST<Key extends Comparable<Key>, Value>
  ST()  //create and empty symbol table
  void put(Key key, Value val)  //associate val with key
  Value get(Key key)  //value associated with key
  void remove(Key key) //remove key (and its associated value)
  boolean contains (Key key)  //return if there is a value associated with key
  int size()  //number of key-value pairs
  Iterable<Key> keys()  // all keys in the symbol table
 ```
 * **SET DATA TYPE**
 ```java
  public class SET<Key extends Comparable<Key>> implements Iterable<Key>
  SET() //create an empthy set
  boolean isEmpthy()  //return if the set is empthy
  void add (Key key)  //add key to the set
  void remove(Key key)  //remove key from set
  boolean contains(Key key) //return if the key is in the set
  int size() //number of elements in set
 ```
--- a/languages/php.php
+++ b/languages/php.php
@ -366,3 +366,106 @@ class ClassWithLogger
     */
    use LoggerAwareTrait;
 }
 /**
 * PHP Regex.
 */
 // Meta Characters.
 ^   Start of subject (or line in multiline mode)
 $   End of subject (or line in multiline mode)
 [   Start character class definition
 ]   End character class definition
 |   Alternates, eg (a|b) matches a or b
 (   Start subpattern
 )   End subpattern
 \   Escape character
 // Pattern Modifiers.
 i   Caseless - ignore case
 m   Multiline mode - ^ and $ match start and end of lines
 s   Dotall - . class includes newline
 x   Extended- comments & whitespace
 e   preg_replace only - enables evaluation of replacement as PHP code
 S   Extra analysis of pattern
 U   Pattern is ungreedy
 u   Pattern is treated as UTF-8
 // Subpattern Modifiers & Assertions.
 (?:)    Non capturing subpattern    ((?:foo|fu)bar) matches foobar or fubar without foo or fu appearing as a captured subpattern
 (?=)    Positive look ahead assertion   foo(?=bar) matches foo when followed by bar
 (?!)    Negative look ahead assertion   foo(?!bar) matches foo when not followed by bar
 (?<=)   Positive look behind assertion  (?<=foo)bar matches bar when preceded by foo
 (?<!)   Negative look behind assertion  (?<!foo)bar matches bar when not preceded by foo
 (?>)    Once-only subpatterns   (?>\d+)bar Performance enhancing when bar not present
 (?(x))  Conditional subpatterns (?(3)foo|fu)bar Matches foo if 3rd subpattern has matched, fu if not
 (?#)    Comment (?# Pattern does x y or z)
 // Base Character Classes
 \w  Any "word" character (a-z 0-9 _)
 \W  Any non "word" character
 \s  Whitespace (space, tab CRLF)
 \S  Any non whitepsace character
 \d  Digits (0-9)
 \D  Any non digit character
 .   (Period) - Any character except newline
 // Multiplicity.
 n*  Zero or more of n
 n+  One or more of n
 n?  Zero or one occurrences of n
 {n} n occurrences exactly
 {n,}    At least n occurrences
 {,m}    At most m occurrences
 {n,m}   Between n and m occurrences (inclusive)
 // PHP Regular Expression Functions.
 Function    Description
 preg_match()    The preg_match() function searches string for pattern, returning true if pattern exists, and false otherwise.
 preg_match_all()    The preg_match_all() function matches all occurrences of pattern in string. Useful for search and replace.
 preg_replace()  The preg_replace() function operates just like ereg_replace(), except that regular expressions can be used in the pattern and replacement input parameters.
 preg_split()    Preg Split (preg_split()) operates exactly like the split() function, except that regular expressions are accepted as input parameters.
 preg_grep() The preg_grep() function searches all elements of input_array, returning all elements matching the regex pattern within a string.
 preg_ quote()   Quote regular expression characters
 // Code Snippets.
 //A better solution for validate email syntax is using filter_var.
 if (filter_var('test+email@fexample.com', FILTER_VALIDATE_EMAIL)) {
    echo "Your email is ok.";
 } else {
    echo "Wrong email address format.";
 }
 //Validate username, consist of alpha-numeric (a-z, A-Z, 0-9), underscores, and has minimum 5 character and maximum 20 character.
 //You could change the minimum character and maximum character to any number you like.
 $username = "user_name12";
 if (preg_match('/^[a-z\d_]{5,20}$/i', $username)) {
    echo "Your username is ok.";
 } else {
    echo "Wrong username format.";
 }
 //Validate domain
 $url = "http://domain-name.com/";
 if (preg_match('/^(http|https|ftp):\/\/([A-Z0-9][A-Z0-9_-]*(?:\.[A-Z0-9][A-Z0-9_-]*)+):?(\d+)?\/?/i', $url)) {
    echo "Your url is ok.";
 } else {
    echo "Wrong url.";
 }
 //Extract domain name from certain URL
 $url = "http://domain-name.com/index.html";
 preg_match('@^(?:http://)?([^/]+)@i', $url, $matches);
 $host = $matches[1];
 echo $host; // domain-name.com
 //Highlight a word in the content
 $text = "A regular expression (shortened as regex) is a sequence of characters that define a search pattern. Usually such patterns are used by string-searching algorithms for 'find' or 'find and replace' operations on strings, or for input validation.";
 $text = preg_replace("/\b(regex)\b/i", 'replaced content', $text);
 echo $text; /*A regular expression (shortened as replaced content) is a sequence of characters that define a search pattern. Usually such patterns are used by string-searching algorithms for 'find' or 'find and replace' operations on strings, or for input validation.*/
--- a/tools/drush.sh
+++ b/tools/drush.sh
@ -0,0 +1,66 @@
 ##############################################################################
 # DRUSH
 # Install: https://www.drush.org/install/
 # Usage: https://www.drush.org/usage/
 ##############################################################################
 cache clear (cc)        # Clear all caches.
 cron                    # Run all cron hooks.
 disable (dis)           # Disable one or more modules.
 download (dl)           # Download core Drupal and projects like CCK, Zen, etc.
 enable (en)             # Enable one or more modules.
 eval                    # Evaluate arbitrary php code after bootstrapping Drupal.
 help                    # Print this help message. Use --filter to limit command list to one command file (e.g. --filter=pm)
 info                    # Release information for a project
 installcore (ic)        # Install Drupal core via the specified install profile. Note that updating core with Drush is not yet available. See http://drupal.org/node/434944.
 refresh (rf)            # Refresh update status information script Runs the given php script(s) after a full Drupal bootstrap. NOTE: you can't supply absolute paths to the script e.g. ~/Desktop/script.php won't work Desktop/script.php will
 sql cli (sqlc)          # Open a SQL command-line interface using Drupal?s credentials.
 sql conf                # Print database connection details.
 sql connect             # A string for connecting to the DB.
 sql dump                # Exports the Drupal DB as SQL using mysqldump.
 sql load                # Copy source database to target database.
 sql query (sqlq)        # Execute a query against the site database.
 status (st)             # Provides a birds-eye view of the current Drupal installation, if any.
 statusmodules (sm)      # Show module enabled/disabled status
 sync                    # Rsync the Drupal tree to/from another server using ssh.
 test clean              # Delete leftover tables and files from prior test runs.
 test mail               # Run all tests and mail the results to your team.
 uninstall               # Uninstall one or more modules.
 update (up)             # Update your project code and apply any database updates required (update.php)
 updatecode (upc)        # Update your project code. Moves existing project files to the backup directory specified in the config.
 updatedb (updb)         # Execute the update.php process from the command line.
 variable delete (vdel)  # Delete a variable.
 variable get (vget)     # Get a list of some or all site variables and values.
 variable set (vset)     # Set a variable.
 watchdog delete (wd)    # Delete all messages or only those of a specified type.
 watchdog show (ws)      # Shows recent watchdog log messages. Optionally filter for a specific type.
--- a/tools/git.sh
+++ b/tools/git.sh
@ -1,28 +1,55 @@
 git init            # initiates git in the current directory
 git clone <address> # creates a git repo from given address (get the address from your git-server)
 git clone <address> -b <branch_name> <path/to/directory>  # clones a git repo from the address into the given directory and checkout's the given branch
 git clone <address> -b <branch_name> --single-branch  # Clones a single branch
 git add file.txt   # adds(stages) file.txt to the git
 git add *          # adds(stages) all new modifications, deletions, creations to the git
 git reset file.txt # Removes file.txt from the stage
 git reset --hard   # Throws away all your uncommitted changes, hard reset files to HEAD
 git rm file.txt    # removes file.txt both from git and file system
 git rm --cached file.txt # only removes file.txt both from git index
 git status         # shows the modifications and stuff that are not staged yet
 git branch                         # shows all the branches (current branch is shown with a star)
 git branch my-branch               # creates my-branch
 git branch -d my-branch            # deletes my-branch
-git checkout my-bracnch            # switches to my-branch
+git checkout my-branch         	   # switches to my-branch
 git merge my-branch                # merges my-branch to current branch
 git push origin --delete my-branch # delete remote branch
 git branch -m <new-branch-name>    # rename the branch
 git checkout --orphan <branch_name> # checkout a branch with no commit history
 git branch -vv                     # list all branches and their upstreams, as well as last commit on branch
 git branch -a                      # List all local and remote branches
 git cherry-pick <commit_id>                     # merge the specified commit
 git cherry-pick <commit_id_A>^..<commit_id_B>   # pick the entire range of commits where A is older than B ( the ^ is for including A as well )
 git remote                         # shows the remotes
 git remote -v                      # shows the remote for pull and push
 git remote add my-remote <address> # creates a remote (get the address from your git-server)
 git remote rm my-remote            # Remove a remote
 git log                      # shows the log of commits
 git log --oneline            # shows the log of commits, each commit in a single line
 git log -p <file_name>       # change over time for a specific file
 git log <Branch1> ^<Branch2> # lists commit(s) in branch1 that are not in branch2
 git log -n <x>               # lists the last x commits
 git log -n <x> --oneline     # lists the last x commits, each commit in single line
 git grep --heading --line-number '<string/regex>' # Find lines matching the pattern in tracked files
 git log --grep='<string/regex>'                   # Search Commit log
 git commit -m "msg"          # commit changes with a msg
 git commit --amend           # combine staged changes with the previous commit, or edit the previous commit message without changing its snapshot
 git commit --amend --no-edit # amends a commit without changing its commit message
 git commit --amend --author='Author Name <email@address.com>'    # Amend the author of a commit
 git push my-remote my-branch # pushes the commits to the my-remote in my-branch (does not push the tags)
 git revert <commit-id>       # Undo a commit by creating a new commit
 git show                     # shows one or more objects (blobs, trees, tags and commits).
 git diff                     # show changes between commits, commit and working tree
 git diff --color             # show colored diff
 git diff --staged            # Shows changes staged for commit
 git tag                           # shows all the tags
 git tag -a v1.0 -m "msg"          # creates an annotated tag
@ -39,7 +66,7 @@ git stash -u                         # stash everything including new untracked
 git stash save "msg"                 # stash with a msg
 git stash list                       # list all stashes
 git stash pop                        # delete the recent stash and applies it
-git stash stach@{2}                  # delete the {2} stash and applies it
+git stash pop stash@{2}              # delete the {2} stash and applies it
 git stash show                       # shows the description of stash
 git stash apply                      # keep the stash and applies it to the git
 git stash branch my-branch stash@{1} # creates a branch from your stash
@ -55,6 +82,11 @@ git clean -f -d/git clean -fd     # To remove directories permanently
 git clean -f -X/git clean -fX     # To remove ignored files permanently
 git clean -f -x/git clean -fx     # To remove ignored and non-ignored files permanently
 git config --global --list                   # lists the git configuration for all repos
 git config --global --edit                   # opens an editor to edit the git config file
 git config --global alias.<handle> <command> # add git aliases to speed up workflow , eg. if  handle is st and command is status then running git st would execute git status 
 .gitignore
 # is a file including names of stuff that you don"t want to be staged or tracked.
 # You usually keep your local files like database, media, and etc here.
@ -64,4 +96,3 @@ git clean -f -x/git clean -fx     # To remove ignored and non-ignored files perm
 # is a hidden directory in repo directory including git files. It is created after "git init".
--- a/tools/heroku.sh
+++ b/tools/heroku.sh
@ -100,6 +100,8 @@ git config --global --remove-section url.ssh://git@heroku.com/       # To remove
 ### Managing and deploying applications on Heroku (Using Docker)     ###################################
 #####################################################################################################
 # Setting stack of your app to a Container
 heroku stack:set container
 heroku container:login            # Login to the container resistry
 git clone https://github.com/heroku/alpinehelloworld.git       # Get sample code by cloning into the following repository
--- a/tools/nginx.sh
+++ b/tools/nginx.sh
@ -4,6 +4,212 @@
 ##############################################################################
 sudo nginx -t # Check syntax
 sudo systemctl status nginx # nginx current status
 sudo systemctl reload nginx # Reload nginx
-sudo service nginx restart  # Restart nginx
+sudo systemctl restart nginx  # Restart nginx
 sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/ # Link website
 # *****************************************************************************
 # General Settings
 # *****************************************************************************
 # Ports
 server {
  # Use HTTP protocol
  listen 80;
  # Use HTTPS protocol
  listen 443 ssl;
  # Listen on port 80 using IPv6
  listen [::]:80;
  # Listen on port 80 using **only** IPv6
  listen [::]:80 ipv6only=on;
 }
 # Domain name (server_name)
 server {
  # Listen to example.com
  server_name example.com;
  # Listen to multiple domains
  server_name example.com www.example.com;
  # Listen to all sub-domains
  server_name *.example.com;
  # Listen to all top-level domains
  server_name example.*;
  # Listen to unspecified hostnames (listens to IP address itself)
  server_name "";
 }
 # *****************************************************************************
 # Serving Files 
 # *****************************************************************************
 # Static assets (traditional web server)
 server {
    listen 80;
    server_name example.com;
    root /path/to/website;
    # root /www/data/ for example
    # If there's no 'root' inside, it will look for /www/data/index.html
    location / {
    }
    # If there's no 'root' inside, it will look for /www/data/images/index.html
    location /images/ {
    }
    # Since there's 'root' inside, it will look for /www/media/videos/index.html
    location /videos/ {
        root /www/media;
    }
 }
 # *****************************************************************************
 # Redirects
 # *****************************************************************************
 # 301 Permanent
 server {
    # Redirect www.example.com to example.com
    listen 80;
    server_name www.example.com;
    return 301 http://example.com$request_uri;
 }
 server {
    # Redirect http to https
    listen 80;
    server_name example.com;
    return 301 https://example.com$request_uri;
 }
 # 302 Temporary
 server {
  listen 80;
  server_name yourdomain.com;
  return 302 http://otherdomain.com;
 }
 # *****************************************************************************
 # Reverse proxy
 # *****************************************************************************
 # Useful for Node.js, Streamlit, Jupyter, etc
 # Basic
 server {
  listen 80;
  server_name example.com;
  location / {
    proxy_pass http://0.0.0.0:3000;
    # where 0.0.0.0:3000 is your Node.js Server bound on 0.0.0.0 listing on port 3000
  }
 }
 # Basic + (upstream)
 upstream node_js {
  server 0.0.0.0:3000;
  # where 0.0.0.0:3000 is your Node.js Server bound on 0.0.0.0 listing on port 3000
 }
 server {
  listen 80;
  server_name example.com;
  location / {
    proxy_pass http://node_js;
  }
 }
 # Upgraded Connection (useful for applications with support for WebSockets)
 upstream node_js {
  server 0.0.0.0:3000;
 }
 server {
  listen 80;
  server_name example.com;
  location / {
    proxy_pass http://node_js;
    proxy_redirect off;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Host $host;
    }
 }
 # *****************************************************************************
 # HTTPS Protocol
 # *****************************************************************************
 # The majority of SSL options depend on what your application does or needs
 server {
    listen 443 ssl;
    server_name example.com;
    ssl on;
    ssl_certificate /path/to/cert.pem;
    ssl_certificate_key /path/to/privkey.pem;
    ssl_stapling on;
    ssl_stapling_verify on;
    ssl_trusted_certificate /path/to/fullchain.pem;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    add_header Strict-Transport-Security max-age=15768000;
 }
 # Permanent redirect to HTTPS secured domain
 server {
  listen 80;
  server_name yourdomain.com;
  return 301 https://$host$request_uri;
 }
 # You can easily secure you website/app using Let's Encrypt.
 # Go https://certbot.eff.org/lets-encrypt/ubuntuxenial-nginx.html for more information
 # *****************************************************************************
 # Load Balancing
 # *****************************************************************************
 # Useful for large applications running in multiple instances. Below example is for reverse proxy
 upstream node_js {
  server 0.0.0.0:3000;
  server 0.0.0.0:4000;
  server 127.155.142.421;
 }
 server {
  listen 80;
  server_name example.com;
  location / {
    proxy_pass http://node_js;
  }
 }
--- a/tools/vim.txt
+++ b/tools/vim.txt
@ -87,6 +87,7 @@ J                   join line below to the current one
 cc                  change (replace) an entire line
 cw                  change (replace) to the end of word
 C                   change (replace) to the end of line
 ct'                 change (replace) until the ' character (can change ' for any character)
 s                   delete character at cursor and substitute text
 S                   delete line at cursor and substitute text (same as cc)
 xp                  transpose two letters (delete and paste, technically)
@ -118,6 +119,7 @@ x                   delete current character
 X                   delete previous character
 dw                  delete the current word
 dd                  delete (cut) a line
 dt'                 delete until the next ' character on the line (replace ' by any character)
 D                   delete from cursor to end of line
 :[range]d           delete [range] lines
@ -279,6 +281,7 @@ CTRL-w <            increase window width
 CTRL-w >            decrease window width
 CTRL-w =            equal window
 CTRL-w o            close other windows
 zz                  Centers the window to the current line
 ##############################################################################
--- a/tools/vscode.md
+++ b/tools/vscode.md
@ -4,89 +4,89 @@
 ### HTML & CSS
- `CSScomb`: Coding style formatter for CSS, Less, SCSS and Saas.
+- [`CSScomb`](https://marketplace.visualstudio.com/items?itemName=mrmlnc.vscode-csscomb): Coding style formatter for CSS, Less, SCSS and Saas.
- `Puglint`: Linter and style checker for pug.
+- [`Puglint`](https://marketplace.visualstudio.com/items?itemName=mrmlnc.vscode-puglint): Linter and style checker for pug.
- `Sass`: Indented Sass syntax highlighting, autocomplete & snippets.
+- [`Sass`](https://marketplace.visualstudio.com/items?itemName=Syler.sass-indented): Indented Sass syntax highlighting, autocomplete & snippets.
- `SCSS IntelliSense`: Advanced autocompletion and refactoring support for SCSS.
+- [`SCSS IntelliSense`](https://marketplace.visualstudio.com/items?itemName=mrmlnc.vscode-scss): Advanced autocompletion and refactoring support for SCSS.
- `XML Format`: Format XML documents.
+- [`XML Format`](https://marketplace.visualstudio.com/items?itemName=mikeburgh.xml-format): Format XML documents.
 ### JavaScript, Node & NPM
- `Import Cost`: This extension will display inline in the editor the size of the imported package.
+- [`Import Cost`](https://marketplace.visualstudio.com/items?itemName=wix.vscode-import-cost): This extension will display inline in the editor the size of the imported package.
- `ESLint`: Integrates ESLint into VS Code
+- [`ESLint`](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint): Integrates ESLint into VS Code
- `NPM`: NPM support for VS Code.
+- [`NPM`](https://marketplace.visualstudio.com/items?itemName=eg2.vscode-npm-script): NPM support for VS Code.
- `NPM Intellisense`: Visual Studio Code plugin that autocompletes NPM modules in import statements.
+- [`NPM Intellisense`](https://marketplace.visualstudio.com/items?itemName=christian-kohler.npm-intellisense): Visual Studio Code plugin that autocompletes NPM modules in import statements.
- `Version Lens`: Shows the latest version for each package using code lens.
+- [`Version Lens`](https://marketplace.visualstudio.com/items?itemName=pflannery.vscode-versionlens): Shows the latest version for each package using code lens.
- `Vetur`: Vue tooling for VS Code.
+- [`Vetur`](https://marketplace.visualstudio.com/items?itemName=octref.vetur): Vue tooling for VS Code.
 ### PHP
- `Better PHPUnit`: A better PHPUnit test runner.
+- [`Better PHPUnit`](https://marketplace.visualstudio.com/items?itemName=calebporzio.better-phpunit): A better PHPUnit test runner.
- `Laravel Artisan`: Laravel Artisan commands within Visual Studio Code.
+- [`Laravel Artisan`](https://marketplace.visualstudio.com/items?itemName=ryannaddy.laravel-artisan): Laravel Artisan commands within Visual Studio Code.
- `PHP CS Fixer`: PHP CS Fixer extension for VS Code, php formatter, php code beautify tool.
+- [`PHP CS Fixer`](https://marketplace.visualstudio.com/items?itemName=junstyle.php-cs-fixer): PHP CS Fixer extension for VS Code, php formatter, php code beautify tool.
- `PHP Doc Comment VSCode Plugin`: Add phpdoc @param and @return tag for selected function signatures.
+- [`PHP Doc Comment VSCode Plugin`](https://marketplace.visualstudio.com/items?itemName=rexshi.phpdoc-comment-vscode-plugin): Add phpdoc @param and @return tag for selected function signatures.
- `PHP IntelliSense`: Advanced Autocompletion and Refactoring support for PHP.
+- [`PHP IntelliSense`](https://marketplace.visualstudio.com/items?itemName=felixfbecker.php-intellisense): Advanced Autocompletion and Refactoring support for PHP.
 ### Git
- `Git History`: View git log, file history, compare branches or commits.
+- [`Git History`](https://marketplace.visualstudio.com/items?itemName=donjayamanne.githistory): View git log, file history, compare branches or commits.
- `Gitignore`: A extension for Visual Studio Code that assists you in working with .gitignore files.
+- [`Gitignore`](https://marketplace.visualstudio.com/items?itemName=codezombiech.gitignore): A extension for Visual Studio Code that assists you in working with .gitignore files.
 ### Themes
- `Material Icon Theme`: Material Design Icons for Visual Studio Code.
+- [`Material Icon Theme`](https://marketplace.visualstudio.com/items?itemName=PKief.material-icon-theme): Material Design Icons for Visual Studio Code.
- `Palenight Theme`: An elegant and juicy material-like theme for Visual Studio Code.
+- [`Palenight Theme`](https://marketplace.visualstudio.com/items?itemName=whizkydee.material-palenight-theme): An elegant and juicy material-like theme for Visual Studio Code.
 ### Handy
- `Better comments`: Improve your code commenting by annotating with alert, informational, TODOs, and more!
+- [`Better comments`](https://marketplace.visualstudio.com/items?itemName=aaron-bond.better-comments): Improve your code commenting by annotating with alert, informational, TODOs, and more!
- `Debugger for Chrome`: Debug your JavaScript code in the Chrome browser.
+- [`Debugger for Chrome`](https://marketplace.visualstudio.com/items?itemName=msjsdiag.debugger-for-chrome): Debug your JavaScript code in the Chrome browser.
- `EditorConfig for VS Code`: EditorConfig Support for Visual Studio Code.
+- [`EditorConfig for VS Code`](https://marketplace.visualstudio.com/items?itemName=EditorConfig.EditorConfig): EditorConfig Support for Visual Studio Code.
- `File Utils`: A convenient way of creating, duplicating, moving, renaming and deleting files and directories.
+- [`File Utils`](https://marketplace.visualstudio.com/items?itemName=sleistner.vscode-fileutils): A convenient way of creating, duplicating, moving, renaming and deleting files and directories.
- `Final-Newline`: Inserts a final newline when saving the document.
+- [`Final-Newline`](https://marketplace.visualstudio.com/items?itemName=samverschueren.final-newline): Inserts a final newline when saving the document.
- `Formatting Toggle`: A VS Code extension that allows you to toggle the formatter (Prettier, Beautify, …) ON and OFF with a simple click.
+- [`Formatting Toggle`](https://marketplace.visualstudio.com/items?itemName=tombonnike.vscode-status-bar-format-toggle): A VS Code extension that allows you to toggle the formatter (Prettier, Beautify, …) ON and OFF with a simple click.
- `Open in Github/Bitbucket...`: Jump to a source code line in Github / Bitbucket, Gitlab, VisualStudio.com
+- [`Open in Github/Bitbucket...`](https://marketplace.visualstudio.com/items?itemName=ziyasal.vscode-open-in-github): Jump to a source code line in Github / Bitbucket, Gitlab, VisualStudio.com
- `OpenChrome`: Open file with Chrome.
+- [`OpenChrome`](https://marketplace.visualstudio.com/items?itemName=huazaierli.openchrome&ssr=false#overview): Open file with Chrome.
- `Output Colorizer`: Syntax Highlighting for log files.
+- [`Output Colorizer`](https://marketplace.visualstudio.com/items?itemName=IBM.output-colorizer): Syntax Highlighting for log files.
- `Prettier - Code formatter`: VS Code plugin for prettier/prettier.
+- [`Prettier - Code formatter`](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode): VS Code plugin for prettier/prettier.
- `Project Manager`: Easily switch between projects.
+- [`Project Manager`](https://marketplace.visualstudio.com/items?itemName=alefragnani.project-manager): Easily switch between projects.
- `REST Client`: REST Client for Visual Studio Code.
+- [`REST Client`](https://marketplace.visualstudio.com/items?itemName=humao.rest-client): REST Client for Visual Studio Code.
- `SVG Viewer`: SVG Viewer for Visual Studio Code.
+- [`SVG Viewer`](https://marketplace.visualstudio.com/items?itemName=cssho.vscode-svgviewer): SVG Viewer for Visual Studio Code.
- `Terminal`: Terminal for Visual Studio Code.
+- [`Terminal`](https://marketplace.visualstudio.com/items?itemName=formulahendry.terminal): Terminal for Visual Studio Code.
- `Vue Peek`: Allows peek and goto definition for Vue single-file components.
+- [`Vue Peek`](https://marketplace.visualstudio.com/items?itemName=dariofuzinato.vue-peek): Allows peek and goto definition for Vue single-file components.
- `VS Live Share`: Real-time collaborative development from the comfort of your favorite tools.
+- [`VS Live Share`](https://marketplace.visualstudio.com/items?itemName=MS-vsliveshare.vsliveshare): Real-time collaborative development from the comfort of your favorite tools.
- `Wrap Console Log`: Wrap to console.log by word or selection.
+- [`Wrap Console Log`](https://marketplace.visualstudio.com/items?itemName=midnightsyntax.vscode-wrap-console-log): Wrap to console.log by word or selection.
 ## My Settings