ruby step iterator

A loop from 0 to 12 by 3 can be written as follows.
0.step(12, 3) {|x| print x, " " }
produces:
0 3 6 9 12

Search and Replace in Multiple Files Using Single Command

http://systembash.com/content/easy-search-and-replace-in-multiple-files-on-linux-command-line/

Custom timeout for Net::HTTP Requests in Ruby

http = Net::HTTP.new(host, port)
http.read_timeout = "timeout in milliseconds"

Open current directory in terminal from nautilus

install nautilus-open-terminal.
1 . sudo apt-get install nautilus-open-terminal.
2 . logout and login or give "nautilus -q" in terminal.


Now in your right-click menu you can open a terminal, and it will be in what ever directory you are currently in in Nautilus