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.

Top Tags



Remove lines with matched string

Terminal - Remove lines with matched string
for i in $(find . -iname '*.html'); do sed '/String/d' $i > $i-tmp; mv $i-tmp $i; done
2010-09-21 14:35:18
User: cadu
Functions: find mv sed
Remove lines with matched string

Search in all html files and remove the lines that 'String' is found.

Know a better way?

If you can do better, submit your command here.

What others think

man sed

use sed -i

Comment by Sizeof 239 weeks and 6 days ago


sed -i '/String/d' $(find -iname '*.html')

or with bland spaces support in filenames:

find -iname '*.html' -exec sed -i '/String/d' {} \;
Comment by dooblem 239 weeks and 6 days ago

or if you are on zsh and have access to ** globbing

(I think bash has ** globbing as well, you just have to turn it on?)

you can do:

sed -i '/String/d' **/*.html

on bsd (including Mac OS X) sed -i works differently, use:

sed -i '' '/String/d' **/*.html

(globbing this way will support spaces in filenames)

Comment by infinull 239 weeks and 5 days ago

This won't handle spaces in filenames.

Comment by Weboide 239 weeks and 5 days ago

Your point of view

You must be signed in to comment.