Here is something I wrote a while ago which may help provide some context and that explains the differences between test, [ and [[ : https://jmmv.dev/2020/03/te

Here is something I wrote a while ago which may help provide some context and that explains the differences between test, [ and [[ : https://jmmv.dev/2020/03/test-bracket.html https://jmmv.dev/2020/03/test-bracket.html