On Thu, 2021-08-05 at 10:36 +0300, Anssi Saari wrote: [...] > > [ A="0 ; " ] > > is always true. It seems it probably has something to do with expansion, > quoting and the special meaning of ;. > ; has no special meaning inside "". The expression is true because there is only a single non-null argument between the [ ] -- Tixy