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Rename files in batch

Make shell (script) low priority. Use for non interactive tasks

Remove multiple spaces
The command removes all the spaces whithin a file and leaves only one space.

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"

urlencoding with one pure BASH builtin
opposite of https://www.commandlinefu.com/commands/view/10014/urldecoding-with-one-pure-bash-builtin ;-)

Programmatic way to find and set your timezone

Set access and modification timestamps of a file using another one as reference
atime and mtime timestamps of $FILE2 is changed according to the ones of $FILE1. If $FILE2 doesn't exist is created.

Say something out loud
Whatever arguments you pass will be spoken out loud. (Put it in a script or shell function.)

Move files around local filesystem with tar without wasting space using an intermediate tarball.

Don't like the cut command? Tired of typing awk '{print $xxx}', try this


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