Commands by haithamg (5)

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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"

command line fu roulette
retrieves the html from a random command line fu page, then finds commands on the page and prints them alternatively, pipe to bash (add "| bash" to the end) to execute the command (very risky) edit: had to adjust to properly display the portion that replaces HTML characters (e.g. " -> ")

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

Copy 3 files from 3 different servers and adds server name tag to file copied

Make sudo forget password instantly
By default sudo 'remembers' password for a few minutes, so that you do not need to re-enter password for a series of sudo commands that might follow within a short time duration. However, sometime you might want sudo to instantly 'forget' the password. (Next sudo command will need you to reenter the password) Credit: I first learned this while listening to one of the 'tuxradar' podcast.

Display top 5 processes consuming CPU

Indent a one-liner.
I often write a one-liner which I want to use later in a script.

HTTP Get of a web page via proxy server with login credentials
If you are behind a proxy server and have to authenticate with proxy server to browser web pages then you have to pass proxy server address and its port number along with user credentials to curl to got GET the page using curl. Example : "curl -U srikanth -x 167.85.103.70:8080 http://www.yahoo.com". In case you don't specify the password (as in the above example), curl will prompt to enter the password at the command line.

Stop or Start (Restart) a Windows service from a Linux machine
Control (stop, start, restart) a Windows Service from a Linux machine which has the `net` command (provided by samba).

Google URL shortener
Use curl and sed to shorten an URL using goo.gl without any other api


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