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Subject:	Re: alias appears to not work inside a called bash script
To:	cygwin AT cygwin DOT com
References:	<000001d31acd$108b0340$31a109c0$@rogers.com> <CANnLRdgWnygyp36uYmpzq7i3BvgHonL5H8CPy_Vr+wOYmWjp4w AT mail DOT gmail DOT com> <0ac245f1-002b-2993-c1de-e4ddaafa9c7d AT cs DOT umass DOT edu> <CANnLRdgBU-Gact9rTN3cSYVy6UMe83r=EYyVsvwS97k8VuxD6g AT mail DOT gmail DOT com> <99262820-ed21-d20d-8da0-2c0daa29f476 AT gmail DOT com> <772ae5e5-8ed7-76c4-6d4b-cf352504a8cc AT cs DOT umass DOT edu>
From:	cyg Simple <cygsimple AT gmail DOT com>
Message-ID:	<78f5b6c2-c097-35bf-578d-6f3e45660e78@gmail.com>
Date:	Tue, 22 Aug 2017 15:07:05 -0400
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On 8/22/2017 1:13 PM, Eliot Moss wrote:
> On 8/22/2017 1:07 PM, cyg Simple wrote:
>> On 8/22/2017 11:18 AM, Stephen John Smoogen wrote:
>>> On 22 August 2017 at 10:47, Eliot Moss <moss AT cs DOT umass DOT edu> wrote:
>>>> On 8/22/2017 10:31 AM, Stephen John Smoogen wrote:
> 
>> Are you talking bash as sh or bash as bash?  Bash as sh will expand
>> those aliases.  But you should study
>> http://tldp.org/LDP/abs/html/aliases.html for all your scripts.  Are
>> there environment variables that could affect the outcome?
> 
> Since the OP has a #! /bin/bash line at the top of his script, I think
> he means bash.  However, running the script with sh explicitly does act
> as you describe, e.g.:  sh myscript x y z ... in contrast to: myscript x
> y z.
> 

There's also --posix and set -o posix which will cause bash to perform
as the OP reports.  I'm guessing this to be used in the bash startup
files in a global fashion on those systems that you're not having to
specify to use aliases.

https://www.gnu.org/software/bash/manual/html_node/Bash-POSIX-Mode.html#Bash-POSIX-Mode

-- 
cyg Simple

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