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.

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:



2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.




find broken symbolic links

Terminal - find broken symbolic links
find -L . -type l
2010-07-23 06:32:41
User: jianingy
Functions: find
find broken symbolic links

== remove broken links ==

find -L . -type l -exec rm -rf {} \;

== how this work ==

"symbolic link; this is never true if the -L option or the -follow option is in effect, unless the symbolic link is broken. If you want to search for symbolic links when -L is in effect, use -xtype." -- manpage of find.


There is 1 alternative - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

To delete:

find -L . -type l -delete
Comment by hfs 243 weeks and 2 days ago

Nice trick. It is a suprise that this works even if there are symlinks that point to other symlinks, because the man page of find doesn't explicitly document whether it follows the link once or until it gets to a non-symlink file.

I tested that find indeed follows links recursively, so symlinks to symlinks won't get reported as broken links. It even detects and complains about loops.

Comment by wipu 175 weeks and 1 day ago

The man pages call these orphan or orphaned links. Adding those terms so I can find it next time instead of developing it independently again. ;-)

Comment by dennisfaust 152 weeks and 2 days ago

Your point of view

You must be signed in to comment.