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Label EXT2/EXT3 File System

Remove all cached images for icons related to your profile
Run inside Command Prompt (cmd.exe) as admin. Note that you must close explorer.exe first, and even so some files will not be deleted, will say "Access is denied." To definitely delete them enter with another admin user or from other operating system and access the drive.

Instant mirror from your laptop + webcam (fullscreen+grab)
This directly puts the "mirror" into fullscreen, and lets you take photos by pressing the 's' key. I bet appearance conscious people will have keyboard shortcut for this command by now.

To get the CPU temperature continuously on the desktop
No need for a colon, and one less semicolon too. Also untested.

Using netcat to copy files between servers
It bypasses encryption overhead of SSH and depending on configuration can be significantly faster. It's recommended to use only in trusted networks.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

check remote port without telnet

Backup a local drive into a file on the remote host via ssh

Remove all the files except abc in the directory
This is for zsh with extended globbing.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.


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