On Fri, Jan 15 2021, Ævar Arnfjörð Bjarmason wrote: > +TEST_SH_IS_BIN_BASH= > +if test -n "$BASH" && test -z "$POSIXLY_CORRECT" > +then > + TEST_SH_IS_BIN_BASH=true > + export TEST_SH_IS_BIN_BASH > +fi I haven't been able to find from bash's documentation & sources whether this really is the right thing here. I.e. in test-lib.sh we've got an existing test for checking $BASH_VERSION. As far as I can tell it's not documented, but that variable doesn't appear in bash's /bin/sh mode, just in /bin/bash mode. And then there's $POSIXLY_CORRECT, does that make it 2 modes in total, or 4 (or 3)? I didn't look too carefully, and in any case this worked for all the cases I threw at it of running the tests with /bin/sh or /bin/bash, but it would be a nice follow-up patch to unify this & the other $BASH_VERSION check in test-lib.sh if we could...
