Re: Question regarding shebang /bin/sh

[Tapani Tarvainen <ipfire@tapanitarvainen.fi>]

[-- Attachment #1: Type: text/plain, Size: 911 bytes --]

On Tue, Apr 07, 2020 at 05:24:27PM +0200, Peter Müller (peter.mueller(a)ipfire.org) wrote:
> 
> Hello *,
> 
> quite a bunch of initscripts in IPFire 2.x contains the /bin/sh as given interpreter
> in their shebang line. Since /bin/sh is a symlink to /bin/bash, I guess it makes sense
> to rewrite them to /bin/bash accordingly.
> 
> That way, we avoid potential collateral damage by following symlinks (dangerous!) and provide
> additional information so tools like shellcheck know what they are actually dealing with.
> 
> Opinions?

In principle I like the idea. But it would take some care:
bash behaves differently when invoked as sh, so you can't simply
change #/bin/sh to #/bin/bash without also checking the scripts
one by one to make sure they still work as they should. Most
probably would as the differences are small but some might need
small adjustment.

-- 
Tapani Tarvainen