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.

OpenID
or
Sign in Register

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

Hide

Credits

Site by David Winterbottom (user root).

Display IP adress of the given interface in a most portable and reliable way. That should works on many platforms.

Terminal - Display IP adress of the given interface in a most portable and reliable way. That should works on many platforms.
x=IO::Interface::Simple; perl -e 'use '$x';' &>/dev/null || cpan -i "$x"; perl -e 'use '$x'; my $ip='$x'->new($ARGV[0]); print $ip->address,$/;' <INTERFACE>
2009-12-13 02:23:40
User: sputnick
Functions: perl
1
Up
Down
Display IP adress of the given interface in a most portable and reliable way. That should works on many platforms.

Thanks to comment if that works or not...

If you have already typed that snippet or you know you already have IO::Interface::Simple perl module, you can type only the last command :

perl -e 'use IO::Interface::Simple; my $ip=IO::Interface::Simple->new($ARGV[0]); print $ip->address,$/;' <INTERFACE>

( The first perl command will install the module if it's not there already... )

Add to favourites | Report as malicious

Know a better way?

If you can do better, submit your command here.

What others think

Doesn't work on MacOS X.

Comment by putnamhill 112 weeks and 5 days ago

Correction: It might work if I install the required module. Thanks for sharing IO::Interface::Simple. I'll check it out.

Comment by putnamhill 112 weeks and 5 days ago

Doesn't work in Solaris 10.

Comment by billbose 112 weeks and 4 days ago

What is the output of

perl -e 'use IO::Interface::Simple; my $ip=IO::Interface::Simple->new($ARGV[0]); print $ip->address,$/;' <INTERFACE>

?

Comment by sputnick 112 weeks and 4 days ago

"cpan" command doesn't exists on Solaris, maybe on OsX too, so you should install the module :

perl -MCPAN -e 'CPAN::Shell->install(IO::Interface::Simple)'

and then use the last command :

perl -e 'use IO::Interface::Simple; my $ip=IO::Interface::Simple->new($ARGV[0]); print $ip->address,$/;' <INTERFACE>
Comment by sputnick 112 weeks and 4 days ago

You can try that one if you have quoting problems on certani Unices :

export x=IO::Interface::Simple; perl -M$x -e1 &>/dev/null || cpan -i "$x"; perl -M$x -e 'my $ip=$ENV{"x"}->new($ARGV[0]); print $ip->address,$/;' eth0
Comment by sputnick 112 weeks ago

Your point of view

You must be signed in to comment.

Related sites and podcasts