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.


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

Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Grab a list of MP3s out of Firefox's cache

Terminal - Grab a list of MP3s out of Firefox's cache
for i in `ls ~/.mozilla/firefox/*/Cache`; do file $i | grep -i mpeg | awk '{print $1}' | sed s/.$//; done
2010-04-11 23:14:18
User: TuxOtaku
Functions: awk file grep sed
4
Grab a list of MP3s out of Firefox's cache

Ever gone to a site that has an MP3 embedded into a pesky flash player, but no download link? Well, this one-liner will yank the names of those tunes straight out of FF's cache in a nice, easy to read list. What you do with them after that is *ahem* no concern of mine. ;)

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
find ~/.mozilla/firefox/*/Cache -exec file {} \; | awk -F ': ' 'tolower($2)~/mpeg/{print $1}'
2010-04-19 06:59:55
User: sata
Functions: awk file find
2

Grab a list of MP3s (with full path) out of Firefox's cache

Ever gone to a site that has an MP3 embedded into a pesky flash player, but no download link? Well, this one-liner will yank the *full path* of those tunes straight out of FF's cache in a clean list.

Shorter and Intuitive version of the command submitted by (TuxOtaku)

Know a better way?

If you can do better, submit your command here.

What others think

I don't get how that's supposed to work. $i only contains the basename, not the absolute path and my Cache files are binary, and grep'ing the files doesn't put anything in nice rows for awk (tested on Ubuntu, with firefox 3.5.9)

Comment by rkulla 332 weeks and 2 days ago

Ok, I realized i didn't have any files that counted as MPEG, so forget what i said about $i, but i had some JPEG and all this the command did was list the filenames that were considered JPEG data, didn't extract any links or anything from them.

Comment by rkulla 332 weeks and 2 days ago

Actually, your command works fine. I interpreted the meaning wrong at first. It applies to other file types well too. For example, 'display 1B674CB2d01' shows the jpegs, fine, etc. Sorry about that.

Comment by rkulla 332 weeks ago

Here's how you can display your cached images:

feh $(for i in $(find ~/.mozilla/firefox/*/Cache); do file $i | grep -i 'jpeg\|png\|gif' | awk '{print $1}' | sed s/.$//; done)

You can easily adapt that to play all your mpegs, etc

Comment by rkulla 332 weeks ago

Your point of view

You must be signed in to comment.