All commands (14,187)

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

Change the homepage of Firefox
This command modifies the preferences file of Firefox that is located in .mozilla/firefox/*.default/prefs.js. It edits the file with sed and the -i option. Then it searches the string "browser.startup.homepage", and the string next to it (second string). Finally, it replaces the second string with the new homepage, that is http://sliceoflinux.com in the example. It doesn't work if you haven't set any homepage.

Show directories in the PATH, one per line
Shorter version.

Extract IPv4 addressess from file

Replace duplicate files by hardlinks

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.

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

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

check open ports without netstat or lsof

exec chmod to subfiles
Using `-exec cmd {} +` causes find to build the command using all matching filenames before execution, rather than once per file.


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