Commands by SiegeX (5)

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Get a regular updated list of zombies
to omit "grep -v", put some brackets around a single character

Remove all but One
$ rm-but() { ls -Q | grep -v "$1" | xargs rm -r ; } Add this to your .bashrc file. Then whenever you need to remove all files/directories but one from present working directory. Run: $ rm-but Notes: 1. This doesn't affect the hidden files. 2. Argument is actually as string. And all files/directories having this string in there name are left untouched.

Find last reboot time
Displays time of last system boot

determine if tcp port is open
for udp nmap -sU -p 80 hostname

Change tha mac adresse
eth0 = the name of the interface 00:01:02:03:04:05 = the new mac adresse the same thing for wireless card $ sudo iwconfig eth1 hw ether 00:01:02:03:04:05

Make a dedicated folder for each zip file
${f%*.zip} strips off the extension from zip filenames

lists files and folders in a folder
lists files and folders in a folder with summary.

Play awesome rythmic noise using aplay
Try modifying the numbers in the "(i*(i>>8|i>>9)&46&i>>8))^(i&i>>13|i>>6)" part. Crudely stolen from http://www.xkcdb.com/9067

In-Place search/replace with datestamped backup
Does an in situ search-replace but leaves a datestamped backup. A variation with more precision: sed -i.`date +%Y%m%d%H%M%S 's/pattern/replace' [filename]

bulk rename files with sed, one-liner
Far from my favorite, but works in sh and with an old sed that doesn't support '-E'


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