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killall -r ".*my-process.*"

recursive remove all htm files

kill all running instances of wine and programs runned by it (exe)
Look mah! All pipes

Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

Prevent non-root users from logging in
Also with optional message: $ echo "no login for you" > /etc/nologin (This doesn't affect your current X session - you're already logged in!)

Look up a unicode character by name
No need for further filedes or substitution for splitting. Simply use read a b

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"

get you public ip address

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

setup a tunnel from destination machine port 80 to localhost 2001, via a second (hub) machine.
this is handy when the hubmachine is the only machine that can connect to the destination machine (allowed on ip by firewall) and you want to access it from your laptop.


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