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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Note that this will not work with files with spaces or characters that need to be escaped. Feel free to leave any comments to improve upon this command, and I'll add it in.
Can pipe to tail or change the awk for for file size, groups, users, etc.
This command will kill all processes using a directory. It's quick and dirty. One may also use a -9 with kill in case regular kill doesn't work. This is useful if one needs to umount a directory.
If run in bash, this will display all executables that are in your current $PATH
This command creates a file of arbitrary size in a windows environment.
Easily convert units of similar measurement. May also be invoked alone, units.
Be careful when issuing this command, it may kill unwanted processes!
To only search on the process name don't use the argument -f, pkill foo