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Re: Variable scoping


From: Chet Ramey
Subject: Re: Variable scoping
Date: Fri, 25 Jul 2008 11:31:24 -0400
User-agent: Thunderbird 2.0.0.16 (Macintosh/20080707)

Dan Stromberg wrote:
Having a shell function's variable changes reflected in its caller really kinda makes me shudder - in fact, it reminds me of gosub. It seems like a bug waiting to happen; I'm amazed I haven't been bitten by it yet.

This is as Posix has standardized:  all variables are global, and there
is no official mechanism to create function-scope variables without
using a subshell.

(This won't go to comp.unix.shell; I don't use usenet any more.)

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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