Commands by Blacksimon (3)

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find sparse files
Prints the path/filename and sparseness of any sparse files (files that use less actual space than their total size because the filesystem treats large blocks of 00 bytes efficiently).

Remove a line from a file using sed (useful for updating known SSH server keys when they change)

Suspend to ram

Backup with versioning
Apart from an exact copy of your recent contents, also keep all earlier versions of files and folders that were modified or deleted. Inspired by the excellent EVACopy http://evacopy.sourceforge.net

Make changes in .bashrc immediately available
Any changes to BASH shell made in .bashrc will be active in the current terminal window from the moment you execute this command, ie. aliases, prompt settings etc. No need to restart terminal. (In BASH 'source' simile to 'eval' lets you generally execute any bunch of commands stacked in a text file).

Find files with the same names in several directories.
cat file1 file2 file3|sort|uniq -d finds the same lines in several files, especially in files with lists of files.

What is my ip?

convert chinese character into wubi86 input code
This CLI requiere the uniconv package that is provided with the yudit unicode editor . The wubi86 is a way to type chinese far quicker than pinyin . More infor on wikipedia : http://en.wikipedia.org/wiki/Wubizixing , http://www.yale.edu/chinesemac/wubi/xing.html

Change MySQL Pager For Nicer Output

Quickly find a count of how many times invalid users have attempted to access your system


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