The following code worked and is now implemented via a cron job. The problem came about when it was actually waiting for expect to find the text. Instead of waiting for it to find it I knew that it would only take a second or two for it to ask for the password so I just set the timer to 10 seconds and it works. File decrypted successfuly.

# Start the pgp decrypt process.
($decrypt = Expect->spawn("pgp $pgpfile")) || die "Couldn't spawn pgp 
+decrypt, $!";

# Wait for 10 seconds then post the password.

sleep(10);
print $decrypt "pass phrase goes here\r";

if(-e $outfile){
        $message="$pgpfile decrypted successfully to $outfile.";
} else{
        $message="$pgpfile NOT decrypted to $outfile!";
}

sleep(5);

system("mv $pgpfile archive/");
[download]

Thanx for the help.