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

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.
Hide

Tags

Hide

Functions

Watch the progress of 'dd'

Terminal - Watch the progress of 'dd'
dcfldd if=/dev/zero of=/dev/null
2010-05-14 17:37:03
User: twjolson
1
Watch the progress of 'dd'

dcfldd is a forensic version of dd that shows a process indicator by default.

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
dd if=/dev/zero | pv | dd of=/dev/null
pkill -USR1 ^dd$
2010-05-14 16:25:01
User: atoponce
Tags: dd kill pkill
3

The 'dd' command doesn't provide a progress when writing data. So, sending the "USR1" signal to the process will spit out its progress as it writes data. This command is superior to others on the site, as it doesn't require you to previously know the PID of the dd command.

Know a better way?

If you can do better, submit your command here.

What others think

as mentioned with the other alternative, dcfldd isn't installed by default on many systems, and isn't platform independent. which makes it less desirable for admins in the long run.

Comment by atoponce 232 weeks and 5 days ago

Plus, dcfldd hasn't been updated for four years...

Comment by ido50 232 weeks and 5 days ago

Your point of view

You must be signed in to comment.

Related sites and podcasts