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

Enable ** to expand files recursively (>=bash-4.0)

Terminal - Enable ** to expand files recursively (>=bash-4.0)
shopt -s globstar
2009-05-05 16:02:44
User: Alanceil
11
Enable ** to expand files recursively (>=bash-4.0)

Since bash 4.0, you can use ** to recursively expand to all files in the current directory. This behaviour is disabled by default, this command enables it (you'd best put it in your .profile). See the sample output for clarification.

In my opinion this is much better than creating hacks with find and xargs when you want to pass files to an application.

Alternatives

There are 5 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

This is a nice feature, and is a nice alternative for find -exec or find|xargs. BUT find & xargs are still necessary when the command line is literally too long (>32K maybe?) and becomes truncated, which using globbing with ** would be more likely to do on directory trees with many files or lists of files with _long_ names. It seems to me that as soon as you find yourself wanting to use ** you may as well use find, because it's easily extensible when you decide to do something more sophisticated and does what you expect.

I wish bash had another globbing that specified 'at any depth' rather than the globstar setting because in my just-built bash-4.0, **/*.c matches C files inside a single subdirectory, and when globstar is set, **/*.c matches C files at any level. I guess that's a feature?

Comment by bwoodacre 320 weeks and 6 days ago

Your point of view

You must be signed in to comment.