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.

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

2009-09-12 - Email updates now available
You can now enable email updates to let you know each time you're command is commented on.
2009-07-11 - API and javascript blog widget now available
A simple API has been released, allowing commands to be retrieved in various formats. This also allows commands to be embedded on blogs/homepages.
2009-05-17 - Added duplicate suggestions to the new command form
When adding a new command, a quick background search is performed to make sure you're not duplicating a command already in the system.
2009-05-17 - Now using Gravatars for comments
Comments now display users' gravatars with the default setting as a random monster.
Hide

Tags

Hide

Functions

Watch several log files in a single window

Terminal - Watch several log files in a single window
multitail /var/log/messages /var/log/apache2/access.log /var/log/mail.info
2009-06-22 06:51:11
User: Neo23x0
3
Watch several log files in a single window

It works like a "tail -f" on several files.

Use the number keys 0-9 to set a baseline in the numbered window.

Pressing "b" let you scroll back in one of the windows.

Know a better way?

If you can do better, submit your command here.

What others think

um... Why would I want to install (and use) a second command that works exactly like tail -f?

Comment by ozymandias 24 weeks ago

It does not work exactly like tail -f

http://www.vanheusden.com/multitail/

Comment by qubyte 24 weeks ago

@ozymandias because it works a little differently than tail -f in that it is intended to follow multiple files, hence the 'multi' part of the multitail name. Neat command!

Comment by bwoodacre 24 weeks ago

My experience:

multitail takes 100% of CPU on very busy systems.

Tailing weblogic logs was so horrible, I've had to shot it down.

For messages/syslog it should do just fine.

Comment by HeadLess 23 weeks and 5 days ago

another option is:

sudo grc tail -f /var/log/foo

Comment by Viperlin 23 weeks and 5 days ago

Your point of view

You must be signed in to comment.

Related sites and podcasts