diff --git a/languages/bash.sh b/languages/bash.sh
index 6b7fcb1..21204cd 100644
--- a/languages/bash.sh
+++ b/languages/bash.sh
@@ -55,6 +55,7 @@ history   # shows command line history
 !!        # repeats the last command
 !<n>      # refers to command line 'n'
 !<string> # refers to command starting with 'string'
+esc :wq   # exits and saves script
 
 exit      # logs out of current session
 
@@ -89,7 +90,10 @@ tree                          # show directories and subdirectories in easilly r
 mc                            # terminal file explorer (alternative to ncdu)
 touch <filename>              # creates or updates (edit) your file
 mktemp -t <filename>          # make a temp file in /tmp/ which is deleted at next boot (-d to make directory)
-cat <filename>                # prints file raw content (will not be interpreted)
+cat <filename>                # displays file raw content (will not be interpreted)
+cat -n <filename>             # shows number of lines
+cat filename1 > filename2     # Copy filename1 to filename2
+cat filename1 >> filename2    # merge two files texts together 
 any_command > <filename>      # '>' is used to perform redirections, it will set any_command's stdout to file instead of "real stdout" (generally /dev/stdout)
 more <filename>               # shows the first part of a file (move with space and type q to quit)
 head <filename>               # outputs the first lines of file (default: 10 lines)