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remove hostname from known_hosts

remote-pbzip2 and transfer a directory to local file

Rotate a video file by 90 degrees CW
Change video orientation in metadata only

Convert .flv to .avi

Automatically skip bad songs in your MPD playlist.
Case insensitive. Also you can pull in the songs from a blacklist, one per line - while :; do (mpc current | grep -i -f blacklist.txt && mpc next); sleep 5; done

File rotation without rename command
Rotates log files with "gz"-extension in a directory for 7 days and enumerates the number in file name. i.e.: logfile.1.gz > logfile.2.gz I needed this line due to the limitations on AIX Unix systems which do not ship with the rename command.

simplest calculator

Multiplication table
The multiplication table for math study

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

Function to split a string into an array
It works as a method applicated to a variable, converts the string variable into an array


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