Commands using echo (1,420)

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Extract the emoticons regex from a running skype process
Skype has an internal regex which depicts the emoticons it supports. However you cannot simply search the binary file for it. This small 181 character line will do just that, provided skype is running. And of course, only works in linux.

Download all Phrack .tar.gzs

all out
How to force a userid to log out of a Linux host, by killing all processes owned by the user, including login shells:

dump database from postgresql to a file

Add a line from 1 file after every line of another (shuffle files together)
After every line in targetfile (empty lines included) insert in a line from addfile. "Save" results to savefile. Addfile should be longer than targetfile since this doesn't loop back to the top of addfile. /^/R addfile -- says for every line that matches "has a start of line" output a line from the file addfile. > savefile (optional) -- redirect output to savefile file.

remove files and directories with acces time older than a given date
touch a dummy file with the specified date, then use find with -anewer .

Mutt - Change mail sender.

Generate a Random MAC address
Use the following variation for FreeBSD: $ openssl rand 6 | xxd -p | sed 's/\(..\)/\1:/g; s/:$//'

When was your OS installed?
Show time and date when you installed your OS.

Top 10 Memory Consuming Processes


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