5 Which Aliases

alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a'
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
Sample Output
$ which env
alias env='command printenv'

$ whichf env
env ()
{ 
    command env $@
}

$ whicha env
alias env='command printenv'

$ whichx env
/bin/env

$ whichall env
alias env='command printenv'
env ()
{ 
    command env $@
}
/bin/env
/usr/bin/env

What Others Think

whichall env Illegal option -- Usage: /usr/bin/which [-a] args
kaedenn · 409 weeks and 3 days ago
Linux kaedenn-laptop 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:52:42 UTC 2010 x86_64 GNU/Linux
kaedenn · 409 weeks and 3 days ago
which version of which? I'm running GNU which v2.16 on Arch Linux.
AskApache · 409 weeks and 3 days ago
Just says Debian. It's a shell script.
kaedenn · 409 weeks and 3 days ago
it doesn't work for me !?
mamtina · 241 weeks and 1 day ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

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.

Share Your Commands



Stay in the loop…

Follow the Tweets.

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.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

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: