I have the script on one of my systems that I can't modify at all, but need to fix its behavior. I can only pass arguments to the script. I am looking if it is possible to do some trickery with the arguments to amend script's behavior.

my $cmd = "mkdir ";
my $arg = "temp"; #this arg I pass to the script
qx($cmd "currentdate$arg");
[download]

I tried something like this:

my $cmd = "mkdir ";
my $arg = "; mkdir otherdir";
qx($cmd "currentdate$arg");
[download]

But it gladly created a directory with the name "currentdate; mkdir otherdir". Any ideas?
Just a note - it is not a mkdir command in the target system, but I picked this generic command to make the code reproducible.
Thanks