try something like:
use POSIX ":sys_wait_h";
sub startTheDB {
(defined $pid = fork()) or die "Unable to fork!\n";
if ( !$pid ) {
exec "StartTheDB" or die "Can't start the db!\n";
} else {
do {
$kid = waitpid(-1, WNOHANG);
} until $kid > 0;
}
}
Note that you'll want to test the db from the parent after you return from the sub.
Updated: It still waits for the child - as pointed out by frodo72
Just a note that the scary looking stuff (e.g. the waitpid) is explained in the docs mentioned throughout this node and here
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