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processes per user counter
use Linux ;)

Create a DOS floppy image
mount with: mount -t msdos -o loop ./floppy.img /tmp/mnt

Check the status of a network interface

Quickly create simple text file from command line w/o using vi/emacs
1. Issue command 2. After angled bracket appears, enter file contents 3. When done, type "EOF"

move you up one directory quickly
Alias a single character 'b' to move to parent directory. Put it into your .bashrc or .profile file. Using "cd .." is one of the most repetitive sequence of characters you'll in the command line. Bring it down to two keys 'b' and 'enter'. It stands for "back" Also useful to have multiple: alias b='cd ../' alias bb='cd ../../' alias bbb='cd ../../../' alias bbbb='cd ../../../../'

clear the cache from memory

Batch convert files to utf-8
taken from http://blog.ofirpicazo.com/linux/batch-convert-files-to-utf-8/

grep tab (\t)
works in bash

Perform a C-style loop in Bash.
Print 0 through 99, each on a separate line.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.


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