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Date:      Wed, 1 Feb 2017 10:49:30 -0500
From:      Roger Pate <roger@qxxy.com>
To:        Manish Jain <bourne.identity@hotmail.com>
Cc:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: Variable assignment in sh
Message-ID:  <CADTH-ouDx6KDEXR=A0K1vWCis_z=UAAdygjYOf9zisB5c0zTqg@mail.gmail.com>
In-Reply-To: <VI1PR02MB0974CB37283D680F46DB1907F64D0@VI1PR02MB0974.eurprd02.prod.outlook.com>
References:  <b831bd9e40321e59910ea8913c7a6302.squirrel@webmail.harte-lyne.ca> <20170131161824.a9f1ef46.freebsd@edvax.de> <b553c644fccc211f9658b31cfe65e8a0.squirrel@webmail.harte-lyne.ca> <20170131185103.7f911dfb.freebsd@edvax.de> <5f51e2c3bdb8a20c6a7786c2b345c957.squirrel@webmail.harte-lyne.ca> <alpine.BSF.2.20.1701311445520.54303@wonkity.com> <20170201014858.eec196d0.freebsd@edvax.de> <VI1PR02MB09748570B8832CAA397D19FFF64D0@VI1PR02MB0974.eurprd02.prod.outlook.com> <CADTH-osmMTbJbC2jsY=LzEEO-K7SDfMusDqnLe2V4+-3P2SEmg@mail.gmail.com> <VI1PR02MB0974CB37283D680F46DB1907F64D0@VI1PR02MB0974.eurprd02.prod.outlook.com>

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On Wed, Feb 1, 2017 at 10:23 AM, Manish Jain
<bourne.identity@hotmail.com> wrote:
> On 02/01/2017 08:36 PM, Roger Pate wrote:
>> Most often, but not always, if I need something bash has and /bin/sh
>> lacks, it's time to write that script in a different language. :P
>
> Generally, FreeBSD community is averse to bash scritpting. But then sh
> lacks array support, which is where bash and zsh do wonderfully well.

Not just FreeBSD community, but I won't belabor the point.

In particular about arrays, remember that sh does support one array
well: $@, both global and per-function.  If two arrays are needed, but
one can be setup in a for loop (useful for globbing files) or list of
lines/NUL-terminated-items (pipe into a while loop or process
xargs-like), then you are also good to go.

> Generally again, I am averse to most Linuxisms, but bash is simply way
> too much convenience to ignore.

I used to believe so too, but now I am happier writing more complex
scripts in Python.  Around the same time, I coincidentally switched my
interactive shell from bash to zsh (though I don't use zsh for
scripting), and also recommend that.



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