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commandlinefu.com is the place to record those command-line gems that you return to again and again.

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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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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

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Commands using shift from sorted by
Terminal - Commands using shift - 7 results
ran() { [ $((RANDOM%100)) -lt "$1" ] && shift && "$@"; }
2015-07-16 13:32:45
User: flatcap
Functions: shift
Tags: bash shell random
5

Randomly decide whether to run a command, or fail.

It's useful for testing purposes.

.

Usage: ran PERCENTAGE COMMAND [ARGS]

Note: In this version the percentage is required.

.

This is like @sesom42 and @snipertyler's commands but in a USABLE form.

.

e.g. In your complicated shell script, put "ran 99" before a crucial component.

Now, it will fail 1% of the time allowing you to test the failure code-path.

ran 99 my_complex_program arg1 arg2
rename(){ txtToReplace=${1} ; replacementTxt=${2} ; shift 2 ; files=${@} ; for file in $files ; do mv ${file} ${file/${txtToReplace}/${replacementTxt}} ; done ; }
2012-10-03 17:03:29
Functions: file mv rename shift
2

Implementation of `rename` for systems on which I don't have access to it.

can(){ shift 2; sudo "$@"; }
watch() { if [ -z "$1" ]; then echo "usage: watch interval command" return fi sec=$1 shift while test :; do clear; date=$(date); echo -e "Every "$sec"s: $@ \t\t\t\t $date"; echo $@; sleep $sec; done }
glu() { (local IFS="$1"; shift && echo "$*") }; repath() { ( _E=`echo "${PATH//:/$'\n'}" | awk '!x[$0]++'`; glu ":" $_E ) ; } ; PATH=`repath` ; export PATH
2011-06-09 12:11:18
User: Timothy
Functions: awk echo export shift
0

Thanks to the authors of:

awk '!x[$0]++' <file>

and the author of:

joinargs() { (local IFS="$1"; shift && echo "$*") }

and others, we can have a fast Linux or android.

IMPORTANT if you find a priority order problem in PATH you can push a path directory to the front without duplication as follows:

PATH=/bin:$PATH

then ...

Check duplication with:

echo $PATH|tr : '\n'|sort|uniq -d

Finally do a very neat line by line list of $PATH:

echo "${PATH//:/$'\n'}

The speed up is very noticeable for android, and builds on Linux Ubantu are much faster with make and scripts.

I will update the command on request. Timothy from SONY

joinargs() { (IFS="$1"; shift && echo "$*") }
__disown(){ local cmd=$1 ; shift ; $cmd "$@" &> /dev/null &disown }; for i in gvim ; do alias $i="__disown $i"; done
2010-07-07 20:46:45
User: smolav
Functions: alias shift
Tags: bash function
0

Define commands that you always invoke with an appended '&disown'. In the example:

gvim foo.txt

will open gvim dettached from the current terminal.