Paul Smith <paul@xxxxxxxxxxxxxxxxx> writes:
>>> + if test $(ls -a1 "$new_workdir/." | wc -l) -ne 2
>
>> I wonder if this check is portable for all platforms we care about,
>> but that is OK, as it should be so for the ones I think of and care
>> about ;-)
>
> Do you mean "." and ".." representing an empty directory? That will
> work on any system where /bin/sh works, for sure.
Even on network mounts from esoteric filesystems and such? When
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ls.html
mentions the "-A" option, it says:
-A
Write out all directory entries, including those whose names
begin with a <period> ( '.' ) but excluding the entries dot
and dot-dot (if they exist).
The "if they exist" part suggests, at least to me, that it is valid
for a POSIX filesystem to lack these two (I suspect that one may be
able to find a more definitive answer from other parts of the POSIX
but I didn't bother).
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