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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"

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

Print environment information.
Print environment (system) information using Perl.

Check if running in an X session
If you want to display a dialog (using xdialog/kdialog/zenity) you need to make sure that you have a valid X session. Checks for the existence of the DISPLAY variable.

On-the-fly unrar movie in .rar archive and play it, does also work on part archives.

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

autorun program when logon Windows XP

Stop procrastination on Facebook.com
or echo '127.0.0.1 facebook.com' | sudo tee -a /etc/hosts Do not execute this command if you don't know what you are doing.

Remove space and/or tab characters at the end of line
The command removes all space and/or tabulation characters preceding new line

Scan all open ports without any required program


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