On Sun, Mar 17, 2024 at 09:25:10AM +0000, Tim Woodall wrote:
> Hi,
> 
> I've been cleaning up some bash scripts

Good


> and, where possible, addressing things reported by shellcheck.

Oh,  shellcheck, https://www.shellcheck.net/
 

> I have this one-liner (which works but shellcheck doesn't like the
> quoting)
> 
> idxsrc="$( newest_file $( APT_CONFIG=${APT_CONFIG} apt-get indextargets 
> --format '$(FILENAME)' 'Identifier: Packages' ))"
> 
> SC2016: Expressions don't expand in single quotes, use double quotes for that.
> SC2046: Quote this to prevent word splitting.
> 
> The first is easy enough to avoid by using backslash instead. But the
> second I can't see how to fix as a one-liner.
> 
> I can make shellcheck happy by doing it like this:
> 
> mapfile -t idxpackages < <( APT_CONFIG=${APT_CONFIG} apt-get indextargets 
> --format \$\(FILENAME\) 'Identifier: Packages' )
> idxsrc="$( newest_file "${idxpackages[@]}")"

For what it is worth:

 - a shell is nice and good tool
 - shellcheck is an afterthought
 - my shellcheck experience learnt me that it can't see the difference
   between "dangerous" and "potentionally dangerous"


Thing I'm trying to tell:  Avoid that shellcheck blocks you



Groeten
Geert Stappers
-- 
Silence is hard to parse

Reply via email to