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.

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.

UpGuard checks and validates configurations for every major OS, network device, and cloud provider.

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:



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!

Top Tags



A formatting test for David Winterbottom: improving commandlinefu for submitters

Terminal - A formatting test for David Winterbottom: improving commandlinefu for submitters
echo "?????, these are the umlauted vowels I sing to you. Oh, and sometimes ?, but I don't sing that one cause it doesn't rhyme."
2011-01-05 05:56:20
User: hackerb9
Functions: echo
A formatting test for David Winterbottom: improving commandlinefu for submitters

Commandlinefu.com is great but has a few bugs when people are submitting new commands:


1. There is no preview button. This was a minor inconvenience before, but now is a major problem since new commands won't show up to be edited until they have been moderated.


2. White space in the description field and in the comments is almost completely lost. People resort to using periods in between paragraphs to force a line break. Indentation of code is ridiculous.


3. Many characters get munged.


3a. For example, a less than character in the description gets read as an HTML tag and discarded. In order to type a less than, I've had to type "<" (I hope that comes out right). Unfortunately, when re-editing a command, the HTML entity is turned into a literal less than character, which I have to change back by hand before saving.

3b. Some unicode characters work in the description field, but turn into ugly literal HTML strings when put in the sample output or in an additional command using the $ prefix.


For example, here is a unicode character: ❥

Here is the same character after a dollar sign: ❥


3c. Some unicode characters don't work anywhere. Bizarrely, it appears to be the most commonly needed ones, such as Latin-1 accented characters. Here are some examples,


Bullet: ?, Center dot: ?, Umlaut u: ?.


4. Here is an example of the greater than, >, and less than,


5. Commandlinefu used to abbreviate long descriptions on the front page and had a "more..." button so that people could read the rest if they wanted. That's a good feature as it encourages people to explain their commands more fully. Either, the feature has gone missing, or, perhaps, I was just hallucinating it existed in the first place. If the former, please bring it back, If the latter, please implement this great new feature I just thought up.


6. Tags cannot include Unicode characters. If you try to type one in, the cursor will just spin and spin as it attempt to look up if that tag exists already. For example, try typing Ctrl+Shift+u 2 7 6 5 SPC as a tag name.


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

On the other hand, commandlinefu is an English language only site so there are very few cases where characters outside the ascii range are in any way necessary or even useful.

Comment by TheMightyBuzzard 380 weeks and 6 days ago

All good points. Will add to the to-do list. Am going to delete this post in 24 hours though as it's not a real command.

Comment by root 380 weeks and 6 days ago

Thanks for deleting this, root. I hadn't actually expected it to be approved by the moderators.

Comment by hackerb9 380 weeks and 6 days ago


Is the todo list public?

Are you taking suggestions?

Is there a forum for comments about the site?

Is the site code public?

Comment by flatcap 380 weeks and 6 days ago

Why is this still online?

Comment by dan 334 weeks and 4 days ago

Your point of view

You must be signed in to comment.