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Oneliner to get domain names list of all existing domain names (from wikipedia)
Quietly get a webpage from wikipedia: curl -s By default, don't output anything: sed -n Search for interesting lines: /<tr valign="top">/ With the matching lines: {} Search and replace any html tags: s/<[^>]*>//g Finally print the result: p

Detach a process from the current shell
Continue to execute the command in background even though quitting the shell.

Quick network status of machine
credit to tumblr engineering blog @ http://engineering.tumblr.com/

Find the package that installed a command

Suspend to ram

Burn CD/DVD from an iso, eject disc when finished.
cdrecord -scanbus will tell you the (x,y,z) value of your cdr (for example, mine is 3,0,0)

Fetch the current human population of Earth
Fetches the world population JSON data from the US census and parses it uses jshon

Rank top 10 most frequently used commands

Get the size of all the directories in current directory

check open ports without netstat or lsof


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