'test' utility behavior question.
Eric Blake
eblake@redhat.com
Mon Aug 30 17:47:00 GMT 2010
On 08/30/2010 11:27 AM, Oleksandr Gavenko wrote:
> $ /bin/test -d && echo ok
> ok
> $ /bin/test -d '' && echo ok || echo must_be_error
> must_be_error
Both of these results match POSIX. Remember, POSIX describes different
behaviors for one argument than for two arguments (for the one-argument
case, the string "-d" is non-empty, so the result must be 0; for the
two-argument case, the string "-d" is a unary operator, and there is no
directory named '').
> if [ -d $dir ]; then
The bug is in your script. You forgot to use quoting or a bashism.
Either of these fixes will correct your script (although the latter
requires bash):
if [ -d "$dir" ]; then
if [[ -d $dir ]]; then
This is not cygwin-specific.
--
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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