Date: Fri, 22 Jan 2016 14:11:30 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 206295] sh(1)/test(1) bug (precedence) Message-ID: <bug-206295-8-Hx4kNVJN1d@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-206295-8@https.bugs.freebsd.org/bugzilla/> References: <bug-206295-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206295 Jilles Tjoelker <jilles@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jilles@FreeBSD.org --- Comment #1 from Jilles Tjoelker <jilles@FreeBSD.org> --- (In reply to nibbana from comment #0) This may not make much sense, but per a literal reading of the 'test' page = in POSIX.1-2008 XCU, the -a or -o indeed binds more strongly than the !. This = is because -a and -o are explicitly said to be "binary primaries" and therefor= e '' -a '' matches the first case of 3 arguments and ! '' -a '' matches the first case of 4 arguments. In bash, dash, zsh and yash, [ ! "" -a "" ] likewise returns true. I recommend writing [ ! "" ] && [ "" ] or [ -z "" ] && [ -n "" ] instead. --=20 You are receiving this mail because: You are the assignee for the bug.=
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