Commands using grep (1,935)

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Get your outgoing IP address
Get your external ip adress thanks to http://www.icanhazip.com

Download all Red Hat Manuals - A better way by user Flatcap
Let's give Flatcap credit for this elegant solution, instead of leaving it hidden as a comment. Tested on RHEL6 and it works. Nice and clean.

Find Out My Linux Distribution Name and Version
Another way of do it in debian like distros, don't know if works for others

about how using internal separate field and store file content on variable

Map the slot of an I/O card to its PCI bus address
Recent hardware may or may not enumerate *both of* these values

generate random password
for Mac OS X

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"

convert a web page into a pdf
This uses the "command-line print" plugin for Firefox (http://torisugari.googlepages.com/commandlineprint2). This same plugin can also produce PNGs. On *nix, the file must exist; therefore the touch bit in front. Also, firefox seems to ignore saved user preferences when "printing" this way (margins, header, footer, etc.), so I had to tweak my ~/.mozilla/firefox/xxxxxxxx.default/prefs.js file by hand. Yup, that's *prefs.js* not user.js - apparently, firefox ignores my user.js file too...

Sort a character string
Sorts a character string, using common shell commands.

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