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Change pidgin status
Thanks for the comment oshazard, i wasn't aware of purple-remote existence.

What is My WAN IP?
The curl command retrieve the HTML text containing the IP address. The grep command picks out the IP address from that HTML text.

List all information about all files (in current dir)
This is a funny usage of the traditional command ls. It could be basically simplified as: $ ls -a -l Duplicating arguments is permitted: $ ls -a -l -l And this markup could be shortened as: $ ls -al Extra note: To view filesizes like a pro, pray for your God: $ ls -allah

online MAC address lookup

check open ports without netstat or lsof

dmesg with colored human-readable dates
Use sed to color the output of a human-readable dmesg output

Annotate tail -f with timestamps

Rename files in batch

generate random password
generate password

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"


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