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commandlinefu.com is the place to record those command-line gems that you return to again and again. 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.

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Get a metascore from metacritic.com
This will fetch a metascore from metacritic.com. It requires a url from metacritic without the http://www.metacritic.com/ Example: $ metascore games/platforms/wii/supermariogalaxy - $ metascore tv/shows/marriageref - $ metascore video/titles/newmoon Would be cool to use this in some sort of a graph.

Send an http HEAD request w/curl

Create a mirror of a local folder, on a remote server
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

Remove comments and empty lines from a conf file
Some conf file are very long (squid.conf) This command help to read it.

Search and replace in multiple files recursively
Replace "foo" with "bar" in all files in current directory recursively

List every docker's name, IP and port mapping

Quickly find a count of how many times invalid users have attempted to access your system

List processes playing sound
When trying to play a sound you may sometimes get an error saying that your sound card is already used, but not by what process. This will list all processes playing sound, useful to kill processes that you no longer need but that keep using your sound card.

Print trending topics on Twitter

download specific files only from a website


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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.

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