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"-o" ([ ! -o ]) exit status should be 1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Priority: 3 Importance: Medium X-Mailer: Open-Xchange Mailer v7.8.4-Rev72 X-Originating-IP: 165.225.81.118 X-Originating-Client: open-xchange-appsuite X-CMAE-Envelope: MS4xfESOIDytCLv2W+C4nDSIp1mMOqhpuiEIvDIuC2lDvtu1Akc5pCyne9nPxGVQduIvmXPM8f1O6mLVGSwmjZAMXGKXUj9nGL5Qqn2al9CPBtWw0/H5Buh9 k5mr2oQ4FdrXAhiG9RORYnKqvj8U/60BWbmTbIjORNFS+HhTh+4U4RZij5DG4HD9/yFwUkyTlVGCxHFbZx7TpI6xTBMyxGvIe/wl1LnnR6jNXaulTKwDYhTW Y6JrXECRDFUu8u1X6GXDLw== X-Seq: 49270 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: > On 09 August 2021 at 15:16 Peter Stephenson = wrote: > > On 09 August 2021 at 11:55 koichi nakashima wrote: > >=20 > >=20 > > In the following code, I expected the exit status to be 1. > > However, in zsh 5.0.3 and later, it was actually 0. > >=20 > > $ zsh -c '[ ! -o ]; echo "$ZSH_VERSION: $?"' > > 4.3.17: 1 >=20 > It's a little bizarre that we've actually got a test for this, and it's > deliberately set up this way. But I think the fix for this case is simpl= e > =E2=80=94 more complicated expressions with "test" or "[", as opposed to = "[[", can > go horribly wrong, but two arguments should be OK =E2=80=94 so I've just = flipped > the test. It can't possibly be right that -a and -o are treated differen= tly > in this context, can it? I've assumed this is uncontroversial, which I think it is, and submitted th= is. I'm guessing the test just got set up to reflect the status quo rather than some deeper (but bizarre) thinking. pws