Commands by bakhru (11)

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list block devices
Shows all block devices in a tree with descruptions of what they are.

cd up a number of levels
Instead of typing "cd ../../.." you can type ".. 3". For extremely lazy typists, you can add this alias: alias ...=".. 2" ....=".. 3" - so now you can write just .... !!! NB the .. function needs to be "source"d or included in your startup scripts, perhaps .bashrc.

Compute the numeric sum of a file
In the file data.txt there is a single column of numbers. Sed adds a "+" between lines and xargs prepares the output for bc. The "echo 0" is to avoid to have a "+" at the beginning of the line.

list files recursively by size

list block devices
Shows all block devices in a tree with descruptions of what they are.

Find the process you are looking for minus the grepped one
faster ;) but your idea is really cool

List mp3 files with less than 320 kbps bitrate.

Block the 6700 worst spamhosts
The above url contains over 6700 of the common ad websites. The command just pastes these into your /etc/hosts.

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

A line across the entire width of the terminal
Use tput cols to find the width of the terminal and set it as the minimum field width.


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