Harald van Dijk wrote, on 01 Sep 2021:
>
> The second problem is the redirection. Based on the above, command
> substitutions in a redirection are supposed to affect the exit status just
> as any other command substitution, but the standard says:
>
> 3. Redirections shall be performed as described in Redirection.
>
> 4. Each variable assignment shall be expanded for tilde expansion,
> parameter expansion, command substitution, arithmetic expansion,
> and quote removal prior to assigning the value.
>
> This means the command substitution in your redirection is supposed to be
> performed prior to that in the variable assignment.
After the list, the standard says:
In the preceding list, the order of steps 3 and 4 may be reversed
if no command name results from step 2 or if the command name
matches the name of a special built-in utility
--
Geoff Clare <[email protected]>
The Open Group, Apex Plaza, Forbury Road, Reading, RG1 1AX, England
