Hello monks!
I have a hash of links %links. The key is the source of the link and the value is the target of the link.
I'm trying to create a script which creates those links (by using ls -s [target] [source]).
At first I thought that it does not really matter the order of creating the links. So I did:

    foreach my $link (keys(%links)) {
    my $target = $links{$link};
    print $fh "ln -s $target $link\n";
    }
[download]

The problem is with a link that dependent on another link. So for example if I have those links:

ln -s ../python2/2.7.15 /usr/pkgs/python/2.7.5
ln -s /nfs/tools/data /usr
[download]

So in that case, since we create /usr only after trying to create /usr/pkgs/python/2.7.5 it will fail.
Is it possible to suggest a strategy on how to find the right order of the links?