Commands by brunost (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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Show what PID is listening on port 80 on Linux

Monitor RAID IO Usage
Shows the IO of the raid sync

Get all IPs via ifconfig
Fetches the IPs and ONLY the IPs from ifconfig. Simplest, shortest, cleanest. Perl is too good to be true... (P.S.: credit should go to Peteris Krumins at catonmat.net)

Change the case of a single word in vim
In edit mode, toggle the case of a single word under the cursor in vim.

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"

Scan Network for Rogue APs.
I've used this scan to sucessfully find many rogue APs on a very, very large network.

Delete specific remote 'origin' branch 'gh-pages'

determine if tcp port is open
@putnamhill, no need if statement in that case. && is a AND and || is a OR

Limit the cpu usage of a process
Similar to `cpulimit`, although `prlimit` can be found shipped with recent util-linux. Example: limit CPU consumption to 10% for a math problem which ordinarily takes up 100% CPU: Before: $ bc -l

list block devices
Shows all block devices in a tree with descruptions of what they are.


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