Re: "The `-a', `-o', `(', and `)' operands are not portable": please clarify

[Reuben Thomas]

2009/8/4 Eric Blake <address@hidden>:
>> What I'd like therefore is a rationale: if -a, -o and parentheses are
>> not in POSIX 1990, please say so
>
> [beautiful rationale from Eric]

Thanks Eric. Could a brief summary of this go in the manual? Something like:

"widely unimplemented and deprecated in POSIX 2008"

?

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http://rrt.sc3d.org
Matthew 5:37: tri-state logic considered harmful