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.
34

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

mbirk · 2009-05-21 04:44:29 7
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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List all NPM global packages installed

Rename files in batch

Extract all GPS positions from a AVCHD video.

Spoof your wireless MAC address on OS X to 00:e2:e3:e4:e5:e6

If you want to check that the spoof worked, type the same command as earlier: $ifconfig en1 | grep ether Now you will see: $ether 00:e2:e3:e4:e5:e6 For the wired ethernet port: $sudo ifconfig en0 ether 00:e2:e3:e4:e5:e6

Delete specific sender in mailq

make 100 directories with leading zero, 001...100, using bash3.X

Create .pdf from .doc

sudo apt-get install wv tetex-extra ghostscript

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

diff the same file in two directories.

This is useful when you're diffing two files of the same name in radically different directory trees. For example: Set $ path1='/some/long/convoluted/path/to/all/of/your/source/from/a/long/dead/machine' then $ path2='/local/version/of/same/file' then run the command. Much easier on the eyes when you're looking back across your command history, especially if you're doing the same diff over and over again.

list block devices

Shows all block devices in a tree with descruptions of what they are.

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