Commands by asdzxc (6)

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List the largest directories & subdirectoties in the current directory sorted from largest to smallest.

Encode a string using ROT47
This command will encode a string using the ROT47 cipher.

Make vim open in tabs by default (save to .profile)
I always add this to my .profile rc so I can do things like: "vim *.c" and the files are opened in tabs.

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.

Download 10 random wallpapers from images.google.com

clean up memory on linux
where proc filesystem mounted under /proc

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

ps -ef | grep PROCESS | grep -v grep | awk '{print $2}' | xargs kill -9
kills all pids matching the search term of "PROCESS". Be careful what you wish for :)

Decode base64-encoded file in one line of Perl
If you are in an environment where you don't have the base64 executable or MIME tools available, this can be very handy for salvaging email attachments when the headers are mangled but the encoded document itself is intact.

retab in vim, tab to space or space to tab, useful in python
usage: :[rang]ret[!][tabstop value] python is indent sensitive, after command :set list you may see your codes are mixed with tab and space ret can help you to convert space to tab or tab to space


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