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

Connect to google talk through ssh by setting your IM client to use the localhost 5432 port
If your firewall or proxy at your location prevents connection to a particular host or port, you can use ssh to tunnel to your home server and do it there instead.

Count the number of pages of all PDFs in current directory and all subdirs, recursively

Top 10 Memory Processes
It displays the top 10 processes sorted by memory usage

Add an audio soundtrack to a series of images to create an flv
Creates a 5 minute flv file, with the given sequence of images and audio with 0.5 fps. The images were created using the following command: for x in `seq 0 300`; do cp ../head.PNG head-`printf '%03d' $x`.png; done You can also inject metadata to seek easier using yamdi as follows: yamdi -i muxed.flv -o video.flv

Fill up disk space (for testing)
Put into some file. No special purpouse, just for fun...

display a smiling smiley if the command succeeded and a sad smiley if the command failed
you could save the code between if and fi to a shell script named smiley.sh with the first argument as and then do a smiley.sh to see if the command succeeded. a bit needless but who cares ;)

Monitor bandwidth by pid
Nethogs is a useful tool for monitor bandwidth consumption by pid. Tested on Debian an CentOs

format txt as table not joining empty columns
-n switch keeps empty columns If your distribution does not ship with a recent column version that supports -n you can use this alternative: perl -pe 's/(^|;);/$1 ;/g' file.csv | column -ts\; | less -S Change the delimiter to your liking.

ps grep with header
Yet another ps grep function, but this one includes the column headings.


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