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Re: environment


From: Chet Ramey
Subject: Re: environment
Date: Fri, 13 Feb 2009 12:09:30 -0500
User-agent: Thunderbird 2.0.0.19 (Macintosh/20081209)

Antonio Macchi wrote:
> 
> $ declare +x x
> 
> $ x=one
> 
> $ ( echo $x; x=two; echo $x )
> one
> two
> 
> 
> 
> subshell inherits "x"?
> is this behavior coherent?

User-specified subshells execute in an environment that is a duplicate
of the parent shell environment, with a couple of exceptions (traps).
It's in the documentation, under COMMAND EXECUTION ENVIRONMENT.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer

Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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