Hi

How can I write same thing in perl to do the same thing that bash does

Bash has:
variable=$i; export variable

unset variable

How do I write that in perl?

Thank You

$blah=whatever;

I need to know how to "export variable" in perl and then "unset variable" in perl.

BASH and perl are two seperate things that do a lot of things the same.

In what aspect are you looking to do this? The only reason to export a variable in BASH is so that you can use it in a shell script that you call.

You normally set the variables you want in perl program before you call them. If, for some reason you wanted to grab the shell variables you called before hand you could always attempt a system call to get the variable.

Otherwise, when you call the perl script, use the BASH variables you've created as inputs to the script, such that you'd call it like this:

myperl.pl $BLAH

Where BLAH is a variable set before hand in the shell. And you'll use the $# variable or whatever it is that houses the command line elements you added after the invocation of the perl script.

Ok i guess i c what you mean. In shell you use to export variables so you can use them through out the program. In perl you just assign variables meanings and you can use them without exporting them.

By any chance would you also happen to know how i can do "case" in perl just as bash has it.
ie:
while getopts S:f:hd: c
do
case "$c" in
d) variableA = $variableB;;
f) variableC = $variableB;;
h) usage;;
S) variableE = $variableB; export variableE;;
\?) usage;;
esac
done

See the Perl FAQ:

http://www.tfug.org/helpdesk/perl/po...odified_m.html

doesnt quite give me what I need.

Those things are called environment variables and in perl they are in %ENV hash.

I'd suggest going out and picking up the O'Reilly perl book. Trying to learn whatever it is you're doing piece meal just isn't going to work all that well. Sorry.

Thanks Kettu thats what i was looking for.