commandlinefu.com is the place to record those command-line gems that you return to again and again.
Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
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Convert all wma to mp3@128k with ffmpeg into directory.
Crop several images by imagemagik's convert command. substitute , ,, with pixel value and with a different existent directory.
Create fortune's *.dat file from commandlinefu from saved preferite script by suhasgupta (http://www.commandlinefu.com/commands/view/3681/backup-all-your-commandlinefu.com-favourites-to-a-plaintext-file) - Italian tutorial here: http://mrehqe.blogspot.com/2011/11/come-ottenere-un-commandlinefu-della.html
Use w_scan to build italian DTT video channel list. To change country, substitute IT with 2 letter country code. Userful to be played in vlc by:
vlc -f dvb-channels.conf
Great for telnet stream. Substitute aa with caca for colour. To see in terminal: