Commands for the wicked (110)

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

Better git diff, word delimited and colorized
I've been using colordiff for years. wdiff is the new fav, except its colors. Word delimited diffs are more interleaved, easing the chore of associating big blocks of changes.

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"

Display packages and versions on Debian/Ubuntu distrib
Need admin right to run dpkg-query

Play musical notes from octave of middle C
Are there any creative pieces of music that can be created using beep and the shell? I'd love to hear it!

Indent a one-liner.
I often write a one-liner which I want to use later in a script.

Extract multiple tar files at once in zsh
tar doesn't support wildcard for unpacking (so you can't use tar -xf *.tar) and it's shorter and simpler than for i in *.tar;do tar -xf $i;done (or even 'for i in *.tar;tar -xf $i' in case of zsh) -i says tar not to stop after first file (EOF)

Recursively remove .svn directories from the current location

Send your terminfo to another machine
I frequently use this trick to send my terminal settings to HPUX and older RHEL systems. This is due to the fact that terminfo support for rxvt-unicode (my preferred terminal app) does not exist on many older Linux and Unices.

Get all upgradable deb packages in a single line
Works for debian and ubuntu based distros.


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