Commands by coffeeaddict_nl (7)

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Search recursively to find a word or phrase in certain file types, such as C code
ack search recursively by default

show rpm packages scriptlets

Replace duplicate files by hardlinks
This variation can handle file paths containing spaces.

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Printing multiple years with Unix cal command
print multiple increasing years using cal - calendar -. You can also try $seq Start Increment End

move contents of the current directory to the parent directory, then remove current directory.
Robust means of moving all files up by a directory. Will handle dot files, filenames containing spaces, and filenames with almost any printable characters. Will not handle filenames containing a single-quote (but if you are moving those, it's time to go yell at whoever created them in the first place).

Use mtr to create a text file report
The report mode of mtr produces a text formated result of the mtr run using the number of ping cycles stated by the command. This text file could then be attached to an email with ease. I use this also without the ">" portion when writing email from within mutt using VI from the command mode with ":r !mtr --report --report-cycles 10 www.google.com" to actually input the same output in the body of an email.

Count lines of source code excluding blank lines and comments
Much more accurate than other methods mentioned here straight out of the box.

Re-read partition table on specified device without rebooting system (here /dev/sda).

View dmesg output in human readable format


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