Commands by rissajeanne (1)

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Compute running average for a column of numbers
This is an on-line algorithm for calculating the mean value for numbers in a column. Also known as "running average" or "moving average".

Delete all but the latest 5 files, ignoring directories

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.

Generate trigonometric/log data easily

List .log files open by a pid
Uses lsof to display the full path of ".log" files opened by a specified PID.

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

Place the argument of the most recent command on the shell
This works if your terminal is in Vi mode

Setting global redirection of STDERR to STDOUT in a script
You have a script where =ALL= STDERR should be redirected to STDIN and you don't want to add "2>&1" at the end of each command... E.G.: $ ls -al /foo/bar 2>&1 Than just add this piece of code at the beginning of your script! I hope this can help someone. :)

List just the executable files (or directories) in current directory
With zsh.

Display total Kb/Mb/Gb of a folder and each file

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