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if you rean the man page exec, it clearly states that it replaces the current shell
your can read the man page for the exec command it is as given below :
If command is specified, it replaces the shell. No new process
is created. The arguments become the arguments to command. If
the -l option is supplied, the shell places a dash at the begin-
ning of the zeroth arg passed to command. This is what login(1)
does. The -c option causes command to be executed with an empty
environment. If -a is supplied, the shell passes name as the
zeroth argument to the executed command. If command cannot be
executed for some reason, a non-interactive shell exits, unless
the shell option execfail is enabled, in which case it returns
failure. An interactive shell returns failure if the file can-
not be executed. If command is not specified, any redirections
take effect in the current shell, and the return status is 0.
If there is a redirection error, the return status is 1.
so it is no possible using exec command ...
you can write a c program fork a process and exec it using the scripts you want is the possiblity i seee...
Thats a good point but i think the way to go now is write a c program to hold what im doing together. Im just learning how shell scripts work and i have a task which chains together a number of scripts, i guess im finding out what can and can't be done with scripts