Subject: Re: bin/17870: /bin/sh bug on expanding $? in here-documents
To: David Laight <email@example.com>
From: Andrew Brown <firstname.lastname@example.org>
Date: 08/08/2002 11:25:36
>> >Anyone any idea where the `echo $?` gets its value from?
>> >That code outputs 1 0 1 0!
>> my guess would be that since the `` bits execute in subshells which
>> haven't had any children exit yet, the only reason thing they can
>> print would be 0.
> echo $(echo $?)
>should output the same as:
> echo $?
i'm not convinced of that. do you have a reference to some standard
that covers this, or is this just what seems right to you?
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