Commands by deijmaster (2)

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grep processes list avoiding the grep itself
Trick to avoid the form: grep process | grep - v grep

Calculate N!
Same as the seq/bc solution but without bc.

awk using multiple field separators
You can use multiple field separators by separating them with | (=or). This may be helpful when you want to split a string by two separators for example. #echo "one=two three" | awk -F "=| " {'print $1, $3'} one three

Copy text to the clipboard
Great for little scripts that dig up obscure info that you are going to have to paste into another app anyway.

Remove a range of lines from a file
Deletes lines to of a file. You must put the end line first in the range for the curly brace expansion, otherwise it will not work properly.

Remove color codes (special characters) with sed

Show IP Address in prompt --> PS1 var
when working with many machines in a computer lab need to know the IP addr is very large, this is a simplistic solution to make things easier

Get International Space Station sighting information for your city
This command outputs a table of sighting opportunities for the International Space Station. Find the URL for your city here: http://spaceflight.nasa.gov/realdata/sightings/

Replace all in last command

rotate the compiz cube via command line
0-1279 = desktop 1 region = face 1 1280-2559 = face 2 ==>> wmctrl 1280 = wmctrl (1281,...2559) are all the same for a 1280 monitor resolution math: argument of wmctrl -o = ( DesiredFace * HorizontalResolution - 1)


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