Pierre Labastie wrote:
> First the &&: an instruction such as:
> do_this && do_that
> in bash does not fail, even if "do_this" fails, because it is taken
> by bash as semantically identical to:
> if do_this; then do_that; fi
This is not correct because the exit status may be different:
$ false && true ; echo $?
1
$ if false ; then true ; fi ; echo $?
0
The bash manpage section that describes the "if list; then list; [
elif list; then list; ] ... [ else list; ] fi" construction says "The
exit status is the exit status of the last command executed, or zero
if no condition tested true.".
Regards,
Jeremy Henty
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