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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"

Netcat Relay
This is an example of using 3 hosts, in a netcat relay. first host connects to middle host 1 -> 2 Second hosts redirects to target host 1 -> 2 -> 3 I hope this makes sense.

sudo for entire line (including pipes and redirects)
USAGE: $ sudor your command This command uses a dirty hack with history, so be sure you not turned it off. WARNING! This command behavior differ from other commands. It more like text macro, so you shouldn't use it in subshells, non-interactive sessions, other functions/aliases and so on. You shouldn't pipe into sudor (any string that prefixes sudor will be removed), but if you really want, use this commands: $ proceed_sudo () { sudor_command="`HISTTIMEFORMAT=\"\" history 1 | sed -r -e 's/^.*?sudor//' -e 's/\"/\\\"/g'`" ; pre_sudor_command="`history 1 | cut -d ' ' -f 5- | sed -r -e 's/sudor.*$//' -e 's/\"/\\\"/g'`"; if [ -n "${pre_sudor_command/ */}" ] ; then eval "${pre_sudor_command%| *}" | sudo sh -c "$sudor_command"; else sudo sh -c "$sudor_command" ;fi ;}; alias sudor="proceed_sudo # "

List of all vim features
The above output is for a custom compiled version of Vim on Arch Linux. Just a quick shell one liner, and presents a list of all the enabled and disabled (those prefixed with a '-') features.

List all open ports and their owning executables
Particularly useful on OS X where netstat doesn't have -p option.

find out zombie process
$8~osstat, $2~pid, $11~cmd

Outgoing IP of server
Faster than the curl/wget-approaches.

Quicker move to parent directory
Alias two dots to move to parent directory. Put it into your .bashrc or .profile file.

UPS Tracking Script

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


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