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Re: Bash -f Test Operator - Not working as expected

From: Greg Wooledge
Subject: Re: Bash -f Test Operator - Not working as expected
Date: Tue, 2 May 2017 08:13:17 -0400
User-agent: Mutt/

On Mon, May 01, 2017 at 11:24:44PM -0500, Eduardo Bustamante wrote:
> > For the behavior you want, you need something like:
> >
> >   test ! -h "$pathname" -a -f "$pathname"

Don't use that.

test ! -h "$pathname" && test -f "$pathname"

would be safe.  Your test command has 6 arguments, for which "the results
are unspecified".

Also, personally I prefer -L over -h, because -L is easier to remember.
But there are older systems where -h is documented but -L is not, so
you're not wrong there.  (HP-UX 10.20's test(1) documents -h and not -L,
but they both work.  I suppose there are actually some systems where -L
doesn't work, but I don't have access to any.)

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