Commands by Ryangillan (1)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Email yourself a quick message
Usage: mailme message This is a useful function if you want to get notified about process completion or failure. e.g. $ mailme "process X completed"

convert wmv into xvid avi format

Ultimate current directory usage command
A little bit smaller, faster and should handle files with special characters in the name.

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.

VIM: when Ctrl-D and Ctrl-U only scroll one line, reset to default
Resets the scroll parameter to the default (half the rows in the current window). The scroll parameter can be inadvertently set to 1, e..g., if you type '1 Ctrl-D' or '1 Ctrl-U' in normal mode.

Show webcam output
Show the webcam output with mplayer.

dd with progress bar and remaining time displayed

Exit shell faster
Use ^D instead of exit. Also ^D ends input stream when you use terminal for typing into standard input.

Watch the progress of 'dd'
run this in another terminal, were xxxx is the process ID of the running dd process. the progress will report on the original terminal that you ran dd on

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

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