title: Is there any website having command line environment of Linux, for practicing commands?
body: <p>I was wondering whether I could practice LINUX commands and shell scripting, online, over a website which could provide me an editor to practice them. And I know that probably the easiest thing to do would be to download a Linux LIVE CD and then practice shell scripting, but apart from it, I want to practice them online, anywhere I want, anytime I want and on any system, without bothering about booting from a LIVE CD.</p>