Commands by digitalsushi (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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How to remove an ISO image from media database

Quick and dirty convert to flash
This converts any media ffmpeg handles to flash. It would actually convert anything to anything, it's based on the file extension. It doesn't do ANY quality control, sizing, etc, it just does what it thinks is best. I needed an flv for testing, and this spits one out easily.

Get full from half remembered commands
Show all commands having the part known by you. Eg: $apropos pdf | less

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

list files recursively by size

Check whether laptop is running on battery or cable
The original proc file doesn't exist on my system.

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

tail: watch a filelog
-f file(s) to be monitorized -n number of last line to be printed on the screen in this example, the content of two files are displayed

Print info about your real user.
To get your effective user: whoami

Insert a line for each n lines


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