Possible Duplicate:What are the fundamental differences between the mainstream *NIX shells? If I write a shell script in bash, will it run in ksh as well?if not, what are the differences?
What are the significant differences between different shells?
bash;shell;shell script;ksh
Depends on which specific commands/features you are using but generally no.See http://en.wikipedia.org/wiki/Comparison_of_command_shells for a summary of differences between shells.