Commands by realkstrawn93 (2)

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List the size (in human readable form) of all sub folders from the current location
Simple and easy to remember. -h is human, -d1 = depth 1. disk usage, human, depth 1

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Number of CPU's in a system
This appears to do the same. Utility is verified to be present on Ubuntu and OpenSuse out-of-the-box.

Convert a string to "Title Case"
Converts the first letter of each word to upper case

Terminal redirection
Will redirect output of current session to another terminal, e.g. /dev/pts/3 Courtesy of bassu, http://www.commandlinefu.com/commands/by/bassu

Generate trigonometric/log data easily

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"

DVD ripping with ffmpeg
Alternative, imho better, using the concat protocol

check open ports without netstat or lsof

Generate a list of installed packages on Debian-based systems
This command is useful when you want to install the same packages on another fresh OS install for example. To do that, use: $ sudo dpkg --set-selections < LIST_FILE


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