On Tue, Oct 17, 2023, 16:30 Chet Ramey <chet.ra...@case.edu> wrote: > On 10/17/23 8:43 AM, Zachary Santer wrote: > > On Tue, Oct 17, 2023 at 8:00 AM Greg Wooledge <g...@wooledge.org> wrote: > > > >> unicorn:~$ unset -v a b c array > >> unicorn:~$ a=b b=c c=42 array[a]=foo; declare -p array > >> declare -a array=([42]="foo") > >> > > What? What is Bash doing here? Dereferencing iteratively until it finds > > something it can do arithmetic with? > > Identifiers in arithmetic expressions are treated as shell variables. > The variable value is treated as an expression and evaluated to produce > the result. >
.. and i think all excepts -A assoc array are math evals -- > ``The lyf so short, the craft so long to lerne.'' - Chaucer > ``Ars longa, vita brevis'' - Hippocrates > Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/ > > >
