Commands by mbirk (3)

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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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Skip banner on ssh login prompt
This allows you to skip the banner (usually /etc/issue.net) on ssh connections. Useful to avoid banners outputted to your mail by rsync cronjobs.

Grep Recursively Through Single File Extension
Trac 0.12.2-stable

Extract audio track from a video file using mencoder
Extracts an MP3 encoded audio stream from an input video file.

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Search for a string inside all files in the current directory
ack seeks for , list all found files and display everything in nice colors. Look for it in http://betterthangrep.com/

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Serial console to a Vmware VM
Create a serial console with "socket (named pipe)" of "/tmp/socket", "from:server, to:virtual machine" in vmware player, etc.. gui. Run the above command after you have booted the guest OS (which should also be configured for serial console).

Show biggest files/directories, biggest first with 'k,m,g' eyecandy
I use this on debian testing, works like the other sorted du variants, but i like small numbers and suffixes :)

Display the inodes number of /

grep -v with multiple patterns.
That's what the sed command should've been, sorry.


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