When I write bash scripts and I've done this for several debian versions I
use:
#!/usr/bin/env bash
That has worked in the past.


-- Jude <jdashiel at panix dot com> "There are four boxes to be used in
defense of liberty: soap, ballot, jury, and ammo. Please use in that
order." Ed Howdershelt 1940.

On Thu, 13 Apr 2023, David wrote:

> In Debian, shell scripts that have
> #!/usr/bin/sh
> as the first line are executed by the 'dash' shell.
>
> If you write such scripts, you might be interested
> to know that 'dash' currently has a behaviour
> change in Debian version 12 Bookworm compared to
> Debian version 11 Bullseye.
>
> This is being discussed at
>   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1028002
>
> Below is a demo of the change which shows an
> example of possible consequences.
>
> In Debian version 11 Bullseye,
> Bash and 'dash' behave the same:
> $ cat /etc/debian_version
> 11.6
> $ mkdir eek
> $ cd eek
> $ touch aa bb 11 22
> $ bash
> $ echo [!0-9]*
> aa bb
> $ echo [^0-9]*
> aa bb
> $ sh
> $ echo [!0-9]*
> aa bb
> $ echo [^0-9]*
> aa bb
>
> In Debian version 12 Bookworm,
> Bash and 'dash' behave differently:
> $ cat /etc/debian_version
> 12.0
> $ mkdir eek
> $ cd eek
> $ touch aa bb 11 22
> $ bash
> $ echo [!0-9]*
> aa bb
> $ echo [^0-9]*
> aa bb
> $ sh
> $ echo [!0-9]*
> aa bb
> $ echo [^0-9]*
> 11 22           <------ new behaviour by dash
>
>

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