"change the current shell" exercise

[cochrand]

So, I'm using a Windows computer. I can see that I'm running the bash shell. However, tcsh is not installed, so I can not start it. It would be helpful if there was a command to tell me what shells I have access to on a given computer, and if you really want me to use tcsh, how to get it if I don't have it.

[yarikoptic]

good point -- so people might not be able to do the exercise if there is no alternative shell available... I guess we should note that.

And good question about available shells - I could only offer doing ls /bin/*sh since all shells I know/we mention are named ending with sh, so that simple ls should be sufficient. Not sure though if there is any other shell on windows, but if it is the 'ubuntu based bash shell', you should be able to apt-get install tcsh