Re: Vars not set when sourcing w/ abs path, set -a

[Van Klaveren, Brian N.]

Ah that's it. That totally makes sense in retrospect, this is because I'm 
basically sourcing the `set -a` so the second time it's set, but also the first 
time `env` doesn't see the local.

(2) is what I was trying to achieve.

Thanks! Sorry for the noise.

Brian


> On Jul 27, 2021, at 6:37 PM, Greg Wooledge <greg@wooledge.org> wrote:
> 
> On Tue, Jul 27, 2021 at 11:42:02PM +0000, Van Klaveren, Brian N. wrote:
>> [bash-test@227f958499c1 ~]$ cat sourceme
>> #!/bin/bash
>> FOO=bar
>> FOO=bar2
>> set -a
>> env | grep FOO
> 
> You probably want to put set -a at the top, before the variables are
> set.  The -a flag isn't retroactive.  It only applies to variables
> that are set *while* it's turned on.
> 
> The typical ways that set -a is used are:
> 
> 1) Around a block of variable assignments within a script, in order to
>   avoid having to type "export" several times.
> 
> 2) Right before sourcing (dotting in) a second file which contains only
>   variable assignments, so that all of those variable assignments are
>   copied to the environment, without having to modify the sourced file.