Hide

What's this?

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

Delete that bloated snippets file you've been using and share your personal repository with the world. 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.


If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Universal configuration monitoring and system of record for IT.
Hide

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:

Hide

News

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!
Hide

Top Tags

Hide

Functions

Hide

Credits

Remove everything except that file

Terminal - Remove everything except that file
ls | egrep -v "[REGULAR EXPRESSION]" | xargs rm -v
2010-04-01 02:40:40
User: Saxphile
Functions: egrep ls rm xargs
-1
Remove everything except that file

This is a slight variation of an existing submission, but uses regular expression to look for files instead. This makes it vastly more versatile, and one can easily verify the files to be kept by running ls | egrep "[REGULAR EXPRESSION]"

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
rm !(*.foo|*.bar|*.baz)
2010-04-13 15:13:54
User: hutch
Functions: rm
74

Deletes all files in a folder that are NOT *.foo, *.bar or *.baz files. Edit the pattern inside the brackets as you like.

rm -f !(survivior.txt)
find . ! -name <FILENAME> -delete
2010-01-13 23:29:51
User: haplo
Functions: find
Tags: files rm
8

it will remove everything except the file names matching you can use also use wildcards

( shopt -s extglob; rm !(<PATTERN>) )
2010-01-13 16:43:15
User: sputnick
Functions: rm
Tags: files rm glob shopt
7

Remove everything except that file with shell tricks inside a subshell to avoid changes in the environment.

help shopt
rm !(file_to_keep_undeleted)
2010-12-15 13:31:06
User: strzel_a
Functions: rm
6

Go to tmp :

cd /tmp; mkdir retmp; cd retmp

Create 10 files :

for i in {1..10}; do touch test$i; done

Remove all files except test10 :

rm !(test10)

Know a better way?

If you can do better, submit your command here.

What others think

In zsh, this is easy:

rm ^filename

the caret indicates logical negation. That is my second favorite feature of zsh. The first is the ability to share history between running shell instances, and not have them clobber each other when exiting. (I'm pretty sure bash doesn't do this.)

Comment by bwoodacre 268 weeks and 4 days ago

Your point of view

You must be signed in to comment.