commandlinefu.com is the place to record those command-line gems that you return to again and again.
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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,…):
Subscribe to the feed for:
This is mostly for my own notes but this command will compute a md5 message digest from the command line.
You can also replace md5sum with other checksum commands (e.g., sha1sum)
This command is a more flexible than my previous submission.
It will work with spaces however suuuuper hacky and ugly.
This is a two part command that comes in really handy if you're running commands that take longer than you're willing to wait. The commands are separated by the semicolon(;) The first command is whatever you're attempting to do. The second commands emails you after the job completes.
Renames all files in a directory named foo to bar.
foobar1 gets renamed to barbar1
barfoo2 gets renamed to barbar2
fooobarfoo gets renamed to barobarfoo
NOTE: Will break for files with spaces AND new lines AND for an empty expansion of the glob '*'
The result of this command is a tar with all files that have been modified/added since revision 1792 until HEAD. This command is super useful for incremental releases.