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Commands using which

Terminal - Commands using which - 21 results

which <command> > /dev/null 2>&1 && echo Success!

2013-03-13 10:04:42

User: skkzsh

Functions: echo which

Tags: which

-4

Up
Down

Do I have this command?

which <command> > /dev/null 2>&1 || echo Error!

For example, I write

which colordiff > /dev/null 2>&1 && alias diff=colordiff

in my `~/.bashrc`.

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xinit $(which awesome) -- /usr/bin/Xephyr :5 -once -fullscreen -ac -keybd "ephyr,,,xkbmodel=pc105,xkblayout=it,xkbrules=evdev,xkboption="

2012-11-03 00:54:33

User: hute37

Functions: which

Tags: awesome

-2

Up
Down

start a nested awesome session

alternatives:

xinit $(which gnome-awesome-session)

with cat /usr/local/bin/gnome-awesome-session:

#!/bin/bash

exec gnome-session --session awesome "$@"

following: http://awesome.naquadah.org/wiki/Quickly_Setting_up_Awesome_with_Gnome

note: in ubuntu 12.10 a probable Xephyr recent bug rejects keybd option ...

echo -n '#!'$(which awk)

2012-02-13 12:15:41

User: SuperFly

Functions: echo which

Tags: bash

-2

Up
Down

before writing a new script

Try it this way...

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echo '#!'$(which bash) > script.sh

2012-02-06 08:25:27

User: sharfah

Functions: echo which

Tags: bash

-4

Up
Down

before writing a new script

Writes out the shebang line (#!/bin/bash) to the script.

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{ echo -n '#!'; which bash; } > script.sh

2012-02-06 01:03:22

User: kev

Functions: echo which

Tags: bash

-8

Up
Down

before writing a new script

write first line `#!`

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vie(){vi $(which $1)}

2011-10-03 15:07:19

User: lpb612

Functions: which

Up
Down

edit a executable script

vie myscript

will find where myscript is, and then use vi to edit that file. Not much trick, but saves typing if you use it a lot.

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which any_path/a_command.sh | sed "s|^./|$(pwd)|"

2011-09-22 10:38:56

User: keymon

Functions: sed which

-8

Up
Down

Returns the absolute path to a command, using which if needed

This works in multiple unixes, not only linux, for different paths.

On solaris, if you do not have which, you can use:

ksh whence -p anypath/a_command.sh | sed "s|^./|$(pwd)|" ksh whence -p

sedit() { cp "$*"{,.bk}; which $EDITOR > /dev/null && $EDITOR "$*" || vim "$*"; }

2011-08-16 18:28:22

User: kaedenn

Functions: cp vim which

-6

Up
Down

Backup a file before editing it.

Some people put spaces in filenames. Others have an $EDITOR environment variable set. This defaults to vim, but you can use whatever you wish: emacs, nano, ed, butterflies, etc.

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function summpkg { dpkg -s $(dpkg -S $1 | egrep -w $(which $1)$ | awk -F: '{print $1}') ; }

2011-07-05 23:06:37

User: b_t

Functions: awk egrep which

Tags: which dpkg

Up
Down

A command's package details

This version builds on my command 8776 (Find the package a command belongs to on debian-based distros). So if you use that command to find package name then you could alternatively use following for

package summary:

function summpkg { dpkg -s $(whichpkg $1 | awk -F: '{print $1}'); }

function whichpkg { dpkg -S $1 | egrep -w $(which $1)$; }

2011-07-05 22:56:48

User: b_t

Functions: egrep which

Tags: dpkg

Up
Down

Find the package a command belongs to on debian-based distros

Similar to command 7822, but handles errors gracefully.

for c in gcc bison dialog bc asdf; do if ! which $c >/dev/null; then echo Required program $c is missing ; exit 1; fi; done

2011-06-27 12:54:02

User: Mozai

Functions: bc bison echo exit gcc which

Up
Down

Check if commands are available on your system

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shebang() { if i=$(which $1); then printf '#!%s\n\n' $i > $2 && vim + $2 && chmod 755 $2; else echo "'which' could not find $1, is it in your \$PATH?"; fi; }

2011-03-09 14:47:32

User: bartonski

Functions: chmod echo printf vim which

Up
Down

create a new script, automatically populating the shebang line, editing the script, and making it executable.

The first argument is the interpreter for your script, the second argument is the name of the script to create.

equery belongs $( which mv )

2011-02-11 22:50:15

User: mrwill

Functions: mv which

Up
Down

Find the package a command belongs to on Gentoo

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dpkg -S $( which ls )

2011-02-09 10:28:58

User: foolano

Functions: ls which

Tags: Debian dpkg

Up
Down

Find the package a command belongs to on Debian

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find_alternatives(){ for i;do which "$i" >/dev/null && { echo "$i"; return 0;};done;return 1;}

2011-01-06 19:53:46

User: eightmillion

Functions: echo return which

Tags: function environment

-1

Up
Down

Pick the first program found from a list of alternatives

This function is used to set environmental variables from a list of alternatives depending on what's installed on the system. It returns the first program found in the list.

Example usage:

export BROWSER=$(find_alternatives chromium-browser google-chrome opera firefox firefox-bin iceweasel konqueror w3m lynx)

export EDITOR=$(find_alternatives vim nano pico emacs kate)

export PAGER=$(find_alternatives vimpager less most more pg)

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alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a'

2010-11-18 03:32:04

User: AskApache

Functions: alias command which

Tags: bash which alias askapache declare type command GNU which GNU

Up
Down

5 Which Aliases

5 helpful aliases for using the which utility, specifically for the GNU which (2.16 tested) that is included in coreutils.

Which is run first for a command. Same as type builtin minus verbosity

alias which='{ command alias; command declare -f; } | command which --read-functions --read-alias'

Which (a)lias

alias whicha='command alias | command which --read-alias'

Which (f)unction

alias whichf='command declare -f | command which --read-functions'

Which e(x)ecutable file in PATH

alias whichx='command which'

Which (all) alias, function, builtin, and files in PATH

alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a'

# From my .bash_profile http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

which command

2010-02-15 19:26:37

User: snl

Functions: which

Tags: which PATH

Up
Down

shows the full path of shell commands

grep CONFIG $(which mysqlbug)

2009-09-23 17:12:37

User: Velenux

Functions: grep which

Tags: mysql

Up
Down

Determine configure options used for MySQL binary builds

Output is from Debian Lenny

which <filename>

2009-09-12 00:51:24

User: Hal_Pomeranz

Functions: which

Tags: shell tr for PATH break

Up
Down

search for a file in PATH

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while true; do { $(which logger) -p local4.notice `free -m | grep Mem`; sleep 60; } done &

2009-06-22 00:29:53

User: Neo23x0

Functions: grep sleep which

Up
Down

Log the current memory statistics frequently to syslog

Uses logger in a while loop to log memory statistics frequently into the local syslog server.

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which somecommand

2009-02-05 10:29:04

User: chrisdrew

Functions: which

Up
Down

locate a command

Returns the pathnames of the files which would be executed in the current environment had its arguments been given as a command.

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