Re: $PIPESTATUS is not updated by single external commands

[Andreas Schwab]

prj@po.cwru.edu (Paul Jarc) writes:

|> A single-element pipeline containing an external command does not
|> update PIPESTATUS.  Problems like this might be easier to detect if $?
|> were reimplemented as just an alias for ${PIPESTATUS[$#PIPESTATUS]}.
|> They are intended to always have the same value, aren't they?
|> 
|> bash-2.05a$ PS1='$(echo "${PIPESTATUS[@]}") $ '

Useless Use of Command Substitution:

PS1='${PIPESTATUS[@]} $ '

|> 0 $ false | false
|> 1 1 $ ls | cat > /dev/null
|> 0 0 $ /bin/false
|> 0 0 $ false | false
|> 1 1 $ ls > /dev/null
|> 1 1 $ true
|> 0 $ 

I cannot reproduce that with the same version on ia64-suse-linux.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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