Commands using set (54)

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Remove duplicate lines whilst keeping empty lines and order
Remove duplicate lines whilst keeping order and empty lines

Remove invalid key from the known_hosts file for the IP address of a host
Quick shortcut if you know the hostname and want to save yourself one step for looking up the IP address separately.

See OpenVZ Container id's of top 10 running processes by %cpu
This command will list the PID, VEID, and Name of the 10 highest cpu using processes on a openvz host. You must have vzpid installed.

Convert every eps in a directory to pdf
Converts every *.eps file to a *.pdf file

Delete a file/directory walking subdirectories (bash4 or zsh)

show the date every rpm was installed
the newest rpms are at the top; individual packages can also be queried this way: rpm --last -q package

Don't save commands in bash history (only for current session)
Unsetting HISTFILE avoid getting current session history list saved.

Update twitter via curl (and also set the "from" bit)
An improvement of the original (at: http://www.commandlinefu.com/commands/view/2872/update-twitter-via-curl) in the sense that you see a "from cURL" under your status message instead of just a "from API" ;-) Twitter automatically links it to the cURL home page.

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

save date and time for each command in history
for the change stay in your history file , export command by writing it into your .bashrc


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