Re: [PATCH v3 2/2] travis-ci: build documentation

Lars Schneider [off-list ref] wrote:

OK. I am not that experienced with shell scripting and therefore it
is hard for me to distinguish between the different shell features.
Do you know/can you recommend the most basic shell to test/work 
with? A quick Google search told me that "dash" from Ubuntu seems
to be a good baseline as it aims to support pretty much only POSIX [1].

Yes, I recommend dash as your /bin/sh if you're using a
Debian-based system ("Debian Almquist shell") such as Ubuntu.

Also, the Debian "devscripts" package has a tool called
"checkbashisms" which I have also found very useful.

Maybe ksh(93) or posh could be good, too, but it's been a
while...

I also rely on checking the manpages-posix and manpages-posix-dev
in the "non-free" section of Debian ("multiverse" in Ubuntu?)