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.
If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/
You can sign-in using OpenID credentials, or register a traditional username and password.
First-time OpenID users will be automatically assigned a username which can be changed after signing in.
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:
I just found another use for the builtin ':' bash command. It increments counters for me in a loop if a certain condition is met...
No effect; the command does nothing beyond expanding arguments and performing any specified redirections. A zero exit code is returned.
rsync will copy the source directory into destination and any subsequent run will synchronize only the changes from the source.
Tee can be used to split a pipe into multiple streams for one or more process to work it. You can add more " >()" for even more fun.
awk can clear the screen while displaying output. This is a handy way of seeing how many lines a tail -f has hit or see how many files find has found. On solaris, you may have to use 'nawk' and your machine needs 'tput'
This appends a random number as a first filed of all lines in SOMEFILE then sorts by the first column and finally cuts of the random numbers.
Report fstat(2) and fcntl(2) information for all open files in each process.
It would be nice if commandlinefu.com had a better domain name. Will they pick one of the above; We'll see.