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Which .service related this file?
I use this as an alias to get all .service files related a single installed file/conf (if it has services, of course). For rpm based systems ;)

List all symbolic links in current directory
With this version, you can list all symlinks in the current directory (no subdirectories), and have it list both the link and the target.

Update zone file Serial numbers
Will edit *.db files in the same directory with todays date. Useful for doing a mass update to domains on a nameserver, adding spf records, etc. Looks for a string starting with 200 or 201 followed by 7 numbers, and replaces with todays date. This won't overwrite Ip's but i would still do some double checking after running this. Make sure your server's date is correct, otherwise insert your own serial number. $rndc reload should usually follow this command.

Install Restricted Multimedia Codecs in Ubuntu 14.04
Install the unrestricted version of libavcodec . It will keep away from any issues or missing codecs in video editors or transcoders. Install unrestricted version of libavcodec by the command.

open path with your default GNOME program
Another step to bring cli and gui closer together: gnome-open It opens a path with the default (gui) application for its mime type. I would recommend a shorter alias like alias o=gnome-open More examples: $ gnome-open . [opens the current folder in nautilus / your default file browser] $ gnome-open some.pdf [opens some.pdf in evince / your default pdf viewer] $ gnome-open trash:// [opens the trash with nautilus] $ gnome-open http://www.commandlinefu.com [opens commandlinefu in your default webbrowser]

command line to optimize all table from a mysql database

List top 100 djs from https://djmag.com/top100djs

Find the 10 users that take up the most disk space
In OSX you would have to make sure that you "sudo -s" your way to happiness since it will give a few "Permission denied" errors before finally spitting out the results. In OSX the directory structure has to start with the "Users" Directory then it will recursively perform the operation. Your Lord and master, Mematron

ping a host until it responds, then play a sound, then exit
This allows for sleeping in between pings. Also, espeak needs to be installed.

convert ascii string to hex
You can use "decode()" in a similar manner: $ python -c 'print "68656c6c6f".decode("hex")'


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