Shells

[DKL01]

Hi,

I have several years of exp in Windows environment. But very new to Unix/ C environment. I was wondering what are Shells and Shell Scripts? Is there any difference between C shells, Bash shells and Ash shells ? I really appreciate some help on this.

Thanks

 

[bjverzal]

A shell is best equated to a command interpreter in DOS/Windows. For example, take a command.com from DOS 1.0 and compare it to a command.com from Windows-2000, and you'll see changes in commands, new commands, etc. The same is true with UNIX shells. Each shell (csh, ksh, bsh, bash, sh, etc...) has different commands and behaviors.

Look at the "Unix in a Nutshell" book from O'Reilly if you need more information.

Bill.

 

[patel]

I will say start using sh because it is powerful and available while you are on single user mode.

Patel