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Create a listing of all possible permissions and their octal representation.

Displays the version of the Adobe Flash plugin installed
This is for Debian, simply change the path if your Flash plugin is installed elsewhere.

quick copy
Utilizes shell expansion of {} to give the original filename and a new filename as arguments to `cp`. Can easily be extended to make multiple copies.

Generate a binary file with all ones (0xff) in it
This is similar to how you would generate a file with all zeros $ dd if=/dev/zero of=allzeros bs=1024 count=2k

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

Display the standard deviation of a column of numbers with awk
This will calculate a running standard deviation in one pass and should never have the possibility for overflow that can happen with other implementations. I suppose there is a potential for underflow in the corner case where the deltas are small or the values themselves are small.

revert a file with svn

Parse compressed apache error log file and show top errors
credit shall fall to this for non-gzipped version: https://gist.github.com/marcanuy/a08d5f2d9c19ba621399

Rename files in batch

Find the package that installed a command


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