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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Commands by johnraff from sorted by
Terminal - Commands by johnraff - 5 results
for i in *; do echo "$i"; done | shuf -n1
2011-03-17 17:48:42
User: johnraff
Functions: echo
Tags: bash random

Choose random file from current folder. Avoids using ls.

$rpl -R oldstring newstring folder
2009-12-09 03:15:31
User: johnraff
Tags: unix replace

If you can install rpl it's simpler to use and faster than combinations of find, grep and sed.

See man rpl for various options.

time on above operation: real 0m0.862s, user 0m0.548s, sys 0m0.180s

using find + sed: real 0m3.546s, user 0m1.752s, sys 0m1.580s

tty > /dev/null 2>&1 || { aplay error.wav ; exit 1 ;}
2009-11-04 16:18:00
User: johnraff
Functions: aplay exit tty
Tags: shell script

If your script needs to be run in a terminal, this line at the top will stop it running if you absent-mindedly double-click the icon, perhaps intending to edit it. (Of course this won't help with scripts that run in the background.)

newest () { candidate=''; for i in "$@"; do [[ -f $i ]] || continue; [[ -z $candidate || $i -nt $candidate ]] && candidate="$i"; done; echo "$candidate"; }
2009-10-29 17:35:01
User: johnraff
Functions: echo
Tags: bash files

Usage example:

newest Desktop/*

Replace "-nt" with "-ot" for oldest.


shopt -s dotglob

first to include dotfiles.

sudo touch /forcefsck
2009-10-29 17:04:47
User: johnraff
Functions: sudo touch

The empty file /forcefsck causes the file system check fsck to be run next time you boot up, after which it will be removed.

This works too:

sudo >/forcefsck