From: Roman Perepelitsa <roman.perepelitsa@gmail.com>
To: LitHack <lithack0@gmail.com>
Cc: zsh-workers@zsh.org
Subject: Re: Random file creation in zsh shell.
Date: Sat, 17 Jun 2023 08:36:09 +0200 [thread overview]
Message-ID: <CAN=4vMogHHEb_P7GwkanFyH8L2Q4jwijz9s2Zz8ZEzaMOULhwQ@mail.gmail.com> (raw)
In-Reply-To: <CADc_fS0itRp3LKH9V9rZHroCZrocu=1CgjJW1HxrNTUkgZjJHg@mail.gmail.com>
On Sat, Jun 17, 2023 at 4:04 AM LitHack <lithack0@gmail.com> wrote:
>
> There is a way to create a random file in zsh shell by which we could hide any of our data in it.
>
> Command: <>=()
I found this surprising.
% =true < =()
% ls /tmp/zsh*
/tmp/zshMw5YZq
Is it expected for `=true < =()` to leave a temporary file behind?
With the builtin `true` the behavior matches my expectation:
% true < =()
% ls /tmp/zsh*
zsh: no matches found: /tmp/zsh*
Another example that leaves a temporary file behind:
% ( exec true ) < =()
All of these work as expected, meaning that they don't leave a
temporary file behind:
% () { =true } < =()
% ( =true ) < =()
% ( true ) < =()
Roman.
next prev parent reply other threads:[~2023-06-17 6:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-17 2:03 LitHack
2023-06-17 4:55 ` Fwd: " LitHack
2023-06-17 6:36 ` Roman Perepelitsa [this message]
2023-06-19 0:21 ` Bart Schaefer
2023-06-19 0:24 ` Bart Schaefer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAN=4vMogHHEb_P7GwkanFyH8L2Q4jwijz9s2Zz8ZEzaMOULhwQ@mail.gmail.com' \
--to=roman.perepelitsa@gmail.com \
--cc=lithack0@gmail.com \
--cc=zsh-workers@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).