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commandlinefu.com is the place to record those command-line gems that you return to again and again. 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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List the Sizes of Folders and Directories

Hide comments
Hide comments and empty lines, included XML comments,

Find out current working directory of a process

history manipulation
make make install !-2 && !-1

clear the cache from memory

Awk: Perform a rolling average on a column of data
Sometimes jittery data hides trends, performing a rolling average can give a clearer view.

Search git logs (case-insensitive)
Normally, searching git log comments is case sensitive. The -i luckily applies to the --grep switch.

Make less act like cat if its input's contents can fit on one screen

notify yourself when a long-running command which has ALREADY STARTED is finished
If you want to be notified when a long-running command is finished, but you have already started it: CTRL+Z $ fg; echo "finished" | sendmail me@example.com I use a script to post a tweet, which sends me a txt: $ fg; echo "finished" | tweet

Randomize lines in a file
Works in sort (GNU coreutils) 7.4, don't know when it was implemented but sometime the last 6 years.


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