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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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Get your outgoing IP address

Filter IP's in apache access logs based on use
Show's per IP of how many requests they did to the Apache webserver

convert doc to pdf
convert to pdf and many other formats and vise versa to get a list of supported formats, run $ unoconv --show

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

Jump to line X in file in Nano.
Starts the cursor on line X of file foo. Useful for longer files in which it takes a long time to scroll. If X is greater than the number of lines in file foo, it will go to the last existing line.

Another Matrix Style Implementation
A bit different from some of the other submissions. Has bold and uses all c printable characters. Change the bs=value to speed up and increase the sizes of the bold and non-bold strings.

remove oprhan package on debian based system

Octal ls
Do ls with permissions written in octal form.

preserve disk; keep OS clean
if you use disk-based swap then it can defeat the purpose of this function.

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"


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