Commands by kumarrav90 (2)

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runs a X session within your X session
http://www.debian-administration.org/article/Running_multiple_X11_sessions

Compare copies of a file with md5

Best option set for 7zip compression of database dumps or generic text files
These re the best option combination that works fine for compressing my database dumps. It's possible that there are another option or value that might improve the compression ratio, by these are the ones that worked, the syntax for 7zr it's a little messy...

reverse order of file

Display rows and columns of random numbers with awk
Displays six rows and five columns of random numbers between 0 and 1. If you need only one column, you can dispense with the "for" loop.

Unrar multiple directories into current working directory
Grabs all rar files in any current subdirectories and feeds it to unrar. Doesn't work well with things packaged like file.part01.rar. Works best with File.rar. You can recurse into other directories by adding more /*'s

Convert JSON to YAML
You need to install the Catmandu Perl module via `cpanm Catmandu`

Grep without having it show its own process in the results
The trick here is to use the brackets [ ] around any one of the characters of the grep string. This uses the fact that [?] is a character class of one letter and will be removed when parsed by the shell. This is useful when you want to parse the output of grep or use the return value in an if-statement without having its own process causing it to erroneously return TRUE.

Reuse last parameter
Reuse the last parameter of the previous command line

Quick access to the ascii table.


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