All commands (14,187)

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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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Clear terminal Screen
Probably the quickest / easiest way to clear the screen.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

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"

write by vim need root privilege

Convert one file from ISO-8859-1 to UTF-8.
Nothing fancy it just converts one file from one character encoding into another one.

Check a server is up. If it isn't mail me.
This version uses netcat to check a particular service.

list files recursively by size

get cookies from firefox
useful to use after with the --load-cookies option of wget

simple du command to give size of next level of subfolder in MB
If you're only using -m or -k, you will need to remember they are either in Megabyte or kilobyte forms. So by using -B, it gives you the unit of the size measurement, which helps you from reading the result faster. You can try with -B K as well.

Find all files that have nasty names
Get a list of file names that may cause problems (eg being served on a webserver, typing a URL on a mobile, etc)


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