David Aguilar <davvid@xxxxxxxxx> writes:
>> + if (-l "$workdir/$file" || ! -e _) {
>> return (0, $null_sha1);
>> }
>
> The "-e _" shorthand caught my eye ~ I didn't know perl could do that!
> Nice.
>
> Underline is barely mentioned in perlvar, but it's obvious what
> (I think) it means, and since Perl is DWIM, it must be right. ;-)
It is mentioned under -X (i.e. the headline for -f, -e, -d,
... tests) in perlfunc with an interesting example of doing
an explicit stat() first and then running many variants of -X
with _ as the target.
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