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Preserve colors when piping tree to less

Ping sweep without NMAP
Ping sweep without NMAP

Extract multiple tar files at once in zsh
tar doesn't support wildcard for unpacking (so you can't use tar -xf *.tar) and it's shorter and simpler than for i in *.tar;do tar -xf $i;done (or even 'for i in *.tar;tar -xf $i' in case of zsh) -i says tar not to stop after first file (EOF)

Send a file to a pastebin from STDIN or a file, with a single function
echo "Hello world!" | sprunge # Redirect a stream to a pastebin sprunge ~/.bashrc # Send a file to a pastebin

Make changes in any profile available immediately/Change to default group
Changes your group to the default group, has the same effect as sourcing your profile/rc file (in any shell) or logging out and back in again.

Press Any Key to Continue
Halt script progress until a key has been pressed. Source: http://bash-hackers.org/wiki/doku.php/mirroring/bashfaq/065

Bring the word under the cursor on the :ex line in Vim
Very handy to bring the word currently under the cursor into a :s command in Vim. Example: If the cursor was on the word "eggs": :s/ ==> :s/eggs

What is the use of this switch ?
Find the usage of a switch with out searching through the entire man page. Usage: manswitch [cmd] [switch] Eg: $manswitch grep silent ____________________________ In simple words $man | grep "\-" Eg: $man grep | grep "\-o" This is not a standard method but works.

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"

Query well known ports list
Uses the file located in /etc/services


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