Very Computer

what are these shell parent shell, chile shell, and a subshell.
I am a beginner in Unix. I just started the class for like two weeks and I
am having problem understanding.
Can someone help pleaaaasssse.

Thanks ahead

A typical command from the shell prompt will spawn a subshell( another copy
of the shell) that executes the command and returns control to the parent.
I use the korn shell a lot at work and will very often run a command that I
know will need a long time. So I use the syntax <command>&. The ampersand
tells the shell the create the subshell for the command and immediately to
the parent(while the subshell still executes in the background). Just read
the man pages for the shell that you are using and it will soon be clear.
Man pages rock, don't wast too much money on books.

Quote:> what are these shell parent shell, chile shell, and a subshell.
> I am a beginner in Unix. I just started the class for like two weeks and I
> am having problem understanding.
> Can someone help pleaaaasssse.

> Thanks ahead