Re: Finding the lowest available UIDs

Something like:

my @uids;
while (my @list = getpwent) {
    $uids[$list[2]]++;
}
print $_ for grep {!$uids[$_]} 200 .. 250;
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Comment on Re: Finding the lowest available UIDs Download Code

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Re^2: Finding the lowest available UIDs by Your Mother (Archbishop) on Nov 11, 2008 at 22:58 UTC
On OS X this gives- `Out of memory during array extend at - line 3.`	[reply] [d/l]
Re^3: Finding the lowest available UIDs by JavaFan (Canon) on Nov 12, 2008 at 12:11 UTC
If your UIDs get too high, either add a test in the loop (no need to do anything if the UID is above 250), or use a hash instead of an array.	[reply]
Re^4: Finding the lowest available UIDs by Your Mother (Archbishop) on Nov 12, 2008 at 17:24 UTC
I know. :) I was remarking upon the suitability of posting an open ended while statement without such a test or safety valve. In the interests of full disclosure: I brought down a production server (internal, anyway) once with a similar snippet. So the beam in my eye is substantial.	[reply]