Commands by mbirk

Commands by mbirk (3)

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View and review the system process tree.

The "pstree" command uses special line-drawing characters. However, when piped into the "less" pager, these are normally disabled.
This is sample output - yours may be different.
7

pstree -Gap | less -r

mbirk · 2009-05-21 05:15:16 0
Compare two directory trees.

This uses Bash's "process substitution" feature to compare (using diff) the output of two different process pipelines.
This is sample output - yours may be different.
35

diff <(cd dir1 && find | sort) <(cd dir2 && find | sort)

mbirk · 2009-05-21 04:44:29 12
Skip over .svn directories when using the "find" command.

The "find" command can be annoying when used inside of a Subversion (or CVS) working directory. Obviously, you can combine this with other predicates and commands to create a more elaborate pipeline: find /var/svn -type f -not \( -name .svn -prune \) -print0 | xargs -0 md5sum Note: You can use my "dont-go-there.sh" script to wrap the "find" command and do this automatically at http://forwardlateral.com/blog/2006/02/27/dont-go-there/
This is sample output - yours may be different.
5

find . -not \( -name .svn -prune \)

mbirk · 2009-05-20 19:45:24 0

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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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