Differences between shells

What is the practical difference among the different shell like
csh , ksh , bash etc.

Refer the link

1. shell confusion..what is diff between bash, ksh, csh, tcsh..??
2. Difference between ksh,bash and different shells.

Hi.

Among many others, see Comparison of command shells - Wikipedia, the free encyclopedia

Google and Wikipedia are your friends for factual questions ... cheers, drl