diff --git a/README.md b/README.md
index e2588ce..d629e9c 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,7 @@ Feel free to take a look. You might learn new things. They have been designed to
 - [Nanobox Boxfile](tools/nanobox_boxfile.yml)
 - [Nanobox CLI](tools/nanobox_cli.sh)
 - [Nginx](tools/nginx.sh)
+- [PM2](tools/pm2.sh)
 - [Ubuntu](tools/ubuntu.sh)
   </details>
 
diff --git a/languages/bash.sh b/languages/bash.sh
index b7a1d22..d77d54c 100644
--- a/languages/bash.sh
+++ b/languages/bash.sh
@@ -139,6 +139,7 @@ ps -u yourusername       # lists your processes
 kill <PID>               # kills the processes with the ID you gave
 killall <processname>    # kill all processes with the name
 top                      # displays your currently active processes
+lsof                     # lists open files
 bg                       # lists stopped or background jobs ; resume a stopped job in the background
 fg                       # brings the most recent job in the foreground
 fg <job>                 # brings job to the foreground
diff --git a/tools/aws.sh b/tools/aws.sh
index 7509cd3..d90525a 100644
--- a/tools/aws.sh
+++ b/tools/aws.sh
@@ -33,7 +33,7 @@ aws s3 mv <local_file_path> s3://<bucket_name>/<destination_file_path> # Move a
 ## Example: aws s3 mv text.txt s3://mybucket/text.txt
 aws s3 mv s3://<bucket_name_1> s3://<bucket_name_2> --recursive # Move all objects from bucket_name_1 to bucket_name_2
 
-aws sync <source> <target> # Sync all contents from source to a target directory. This will copy and update all missing or outdated files or objects between source and target
-## Examples: aws sync . s3://mybucket
-##           aws sync s3://bucket_1 s3://bucket_2
-aws sync <source> <target> --delete # Sync all contents from source to target, but this will remove all missing files and objects from the target that are not present in source
+aws s3 sync <source> <target> # Sync all contents from source to a target directory. This will copy and update all missing or outdated files or objects between source and target
+## Examples: aws s3 sync . s3://mybucket
+##           aws s3 sync s3://bucket_1 s3://bucket_2
+aws s3 sync <source> <target> --delete # Sync all contents from source to target, but this will remove all missing files and objects from the target that are not present in source
diff --git a/tools/docker.sh b/tools/docker.sh
index a24f374..c19579e 100644
--- a/tools/docker.sh
+++ b/tools/docker.sh
@@ -16,6 +16,7 @@ docker rm $(docker ps -a -q)                # Remove all containers from this ma
 docker images -a                            # Show all images on this machine
 docker rmi <imagename>                      # Remove the specified image from this machine
 docker rmi $(docker images -q)              # Remove all images from this machine
+docker logs <container-id> -f               # Live tail a container's logs
 docker login                                # Log in this CLI session using your Docker credentials
 docker tag <image> username/repository:tag  # Tag <image> for upload to registry
 docker push username/repository:tag         # Upload tagged image to registry
diff --git a/tools/git.sh b/tools/git.sh
index 0f32f4a..2e630ad 100644
--- a/tools/git.sh
+++ b/tools/git.sh
@@ -46,6 +46,10 @@ git stash branch my-branch stash@{1} # creates a branch from your stash
 git stash drop stash@{1}             # deletes the {1} stash
 git stash clear                      # clears all the stash
 
+git rebase -i <commit_id>         # Rebase commits from a commit ID
+git rebase --abort                # Abort a running rebase
+git rebase --continue             # Continue rebasing after fixing all conflicts
+
 git clean -f                      # clean untracked files permanently
 git clean -f -d/git clean -fd     # To remove directories permanently
 git clean -f -X/git clean -fX     # To remove ignored files permanently
diff --git a/tools/pm2.sh b/tools/pm2.sh
new file mode 100644
index 0000000..ecdfc04
--- /dev/null
+++ b/tools/pm2.sh
@@ -0,0 +1,26 @@
+##############################################################################
+# PM2
+##############################################################################
+
+# Start commands
+pm2 start <file>          # Start an application
+pm2 start <app_id>        # Start a stopped application
+pm2 start <app_id> ecosystem.config.js # Start an app with the configuration in ecosystem file
+pm2 start <file> -i <number_of_instances> # Start an app in cluster mode with n duplicated instances
+
+# Management commands
+pm2 ls                    # List all processes
+pm2 save                  # Save process list to respawn at reboot
+pm2 restart <app_id>      # Restart an app by ID
+pm2 reload <app_id>       # Reload an app by ID
+pm2 stop <app_id>         # Stop an app by ID
+pm2 stop all              # Stop all running instances
+pm2 delete <app_id>       # Delete an app by ID
+pm2 delete all            # Delete all instances
+pm2 ecosystem             # Generate a sample ecosystem.config.js file
+
+# Monitoring
+pm2 show <app_id>         # Show a specific app's description
+pm2 logs <app_id> --lines=<number_of_lines> # Show the last n lines of logs of an app
+pm2 env <app_id>          # Show all environment variables of an app
+pm2 monit                 # Monitor all applications' logs, metrics,etc
diff --git a/tools/ubuntu.sh b/tools/ubuntu.sh
index 65a7280..f2f89c4 100644
--- a/tools/ubuntu.sh
+++ b/tools/ubuntu.sh
@@ -11,3 +11,5 @@ sudo ufw allow from remote_IP_address to any port 3306 # Allow external ip to ac
 
 scp user@remote_host:remote_file local_file # download: remote -> local
 scp local_file user@remote_host:remote_file # upload: local -> remote
+
+cat /proc/<process_id>/maps   # Show the current virtual memory usage of a Linux process