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

Given a file path, unplug the USB device on which the file is located (the file must be on an USB device !)

Terminal - Given a file path, unplug the USB device on which the file is located (the file must be on an USB device !)
echo $(sudo lshw -businfo | grep -B 1 -m 1 $(df "/path/to/file" | tail -1 | awk '{print $1}' | cut -c 6-8) | head -n 1 | awk '{print $1}' | cut -c 5- | tr ":" "-") | sudo tee /sys/bus/usb/drivers/usb/unbind
2014-04-06 12:06:29
User: tweet78
Functions: awk cut df echo grep head sudo tail tee tr
29
Given a file path, unplug the USB device on which the file is located (the file must be on an USB device !)

You have an external USB drive or key.

Apply this command (using the file path of anything on your device) and it will simulate the unplug of this device.

If you just want the port, just type :

echo $(sudo lshw -businfo | grep -B 1 -m 1 $(df "/path/to/file" | tail -1 | awk '{print $1}' | cut -c 6-8) | head -n 1 | awk '{print $1}' | cut -c 5- | tr ":" "-")

Alternatives

There are 8 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

Nice one, tweet78 !. Works for my USB key and my external HDD.

Comment by maze360 23 weeks and 1 day ago

I have I/O errors while writing on my usb drive.

Thanks to your command, I wrote a script to unplug / replug and resume transfer. Very useful, thanks !

Comment by dickbeck 23 weeks ago

Interesting, but will not work if the file is on a raid 1 array for example (several devices) ...

Comment by stevebaker 22 weeks and 6 days ago

not bad, but I'm sure I could write a shorter command, still working on it !

Comment by nullpointer 22 weeks and 6 days ago

awesome !

Comment by changlee 21 weeks and 5 days ago

Ca marche pas avec toutes les cl?s usb, mais bon boulot tout de m?me

Comment by massimo 21 weeks and 4 days ago

great !

Comment by feduser 21 weeks and 2 days ago

OK on Kali

Comment by zaius 21 weeks and 2 days ago

works well for me on Fedora 20, but, as stated, should be improved to manage raid

Comment by bobanderson 21 weeks ago

Your point of view

You must be signed in to comment.

Related sites and podcasts