Shell Programming and Scripting

How can I run a program ('prog') through perl (in unix) and feed her required parameters?

system ("prog \n"); ?????????

now 'prog' ask for parameters and I want the perl script to give them automaticly without humen intervention?

build a menu that the user chooses stuff out of save it to a variable and pass all the variables to the "prog" from the script.

You're using "system" in perl, so you're not gathering the results back into perl. If your parameters are in an array called @a, then use this form:

Code:

system /path/to/prog, @a

This will run prog directly, with no intervening shell (a bonus for small programs run a lot).

Have a gander at "man perlfunc" and read the entry therein for "system".

But if you want/need to feed parameters into standard input of prog, use this:

Code:

open(PROG, "| prog") || die "Can\'t start prog";
print PROG $param[0];
print PROG $param[1];
# and so on until you are done
close PROG;