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archive all files containing local changes (svn)
Create a tgz archive of all the files containing local changes relative to a subversion repository. Add the '-q' option to only include files under version control: $svn st -q | cut -c 8- | sed 's/^/\"/;s/$/\"/' | xargs tar -czvf ../backup.tgz Useful if you are not able to commit yet but want to create a quick backup of your work. Of course if you find yourself needing this it's probably a sign you should be using a branch, patches or distributed version control (git, mercurial, etc..)

Prints any IP out of a file

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

git pull all repos

convert unixtime to human-readable

Find duplicate UID in /etc/passwd
You can use only awk

Binary clock
Like 7171, but fixed typo, uses fewer variables, and even more cryptic!

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"

Convert PNG to GIF
(relies on 'imagemagick') Convert all .png files to .gif. This can also go the other way if you reverse the file extensions in the command, e.g.: $ for file in *.gif; do convert "$file" "$(basename $file .gif).png"; done If the file is named 'example1.png' it will be named 'example1.gif' when it is complete.

Are the two lines anagrams?
This is just a slight alternative that wraps all of #7917 in a function that can be executed


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