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Fri, 16 Jun 2023 23:36:24 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Roman Perepelitsa Date: Sat, 17 Jun 2023 08:36:09 +0200 Message-ID: Subject: Re: Random file creation in zsh shell. To: LitHack Cc: zsh-workers@zsh.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Seq: 51870 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 Sat, Jun 17, 2023 at 4:04=E2=80=AFAM LitHack wrote: > > There is a way to create a random file in zsh shell by which we could hid= e any of our data in it. > > Command: <>=3D() I found this surprising. % =3Dtrue < =3D() % ls /tmp/zsh* /tmp/zshMw5YZq Is it expected for `=3Dtrue < =3D()` to leave a temporary file behind? With the builtin `true` the behavior matches my expectation: % true < =3D() % ls /tmp/zsh* zsh: no matches found: /tmp/zsh* Another example that leaves a temporary file behind: % ( exec true ) < =3D() All of these work as expected, meaning that they don't leave a temporary file behind: % () { =3Dtrue } < =3D() % ( =3Dtrue ) < =3D() % ( true ) < =3D() Roman.