Re: Doc on simple command expansion

[Chet Ramey]

On 3/3/22 6:11 AM, Glen Huang wrote:

> > If one of the expansions contained a command substitution, the exit status of 
> > the command
> > is the exit status of the last command substitution performed. If there were no 
> > command
> > substitutions, the command exits with a status of zero.
>
> Which seems to indicate that for a simple command like this
>
> echo "$(false)"
>
> echo's return status should be determined by that of false, which is
> apparently not the case. So I wonder what scenario this paragraph is
> describing?

Your selective quoting applies to the case where there is no command
word (like `echo') and the simple command consists only of assignment
statements.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/