This isn't all that hard - you just use a custom sort and prioritize your comparisons by checking for special values first. In this case I use a set of regexes as hash keys and provide a default (3) for the cases that aren't covered. This example steps on the values $aKey, $bKey, $aPri, $bPri - you could modify the code to eliminate the temporary variables.
%sort_priority = (
qr|^/etc/init.d| => 0,
qr|^/root| => 1,
qr|^/usr/bin| => 2,
qr|.?| => 3
);
@new_array = sort
{
# Get the matching keys
($aKey) = grep { $a->{'path'} =~ $_ } keys %sort_priority;
($bKey) = grep { $b->{'path'} =~ $_ } keys %sort_priority;
# and now their priorities
$aPri = $sort_priority{$aKey};
$bPri = $sort_priority{$bKey};
# Now compare based on priority then value
($aPri == $bPri
? $a->{'path'} cmp $b->{'path'}
: $aPri <=> $bPri)
} @array;
Update: And of course I forgot that it's a bunch of hash references. Now $a and $b are properly dereferenced
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