Date: Thu, 15 Nov 2018 12:09:46 -0600
From: Eric Blake <ebl...@redhat.com>
Message-ID: <8491692f-8d4a-f24f-2744-2de3465a9...@redhat.com>
| On 11/15/18 12:00 PM, RAL wrote:
| > How is defined the maximum number of characters a variable name can have?
|
| Bash has no hardcoded limit, thus your maximum is dependent on how much
| free memory your system has.
I maintain the NetBSD sh (an ash derivative) - as part of that I have
a test that (amongst other things) tests long var names - it tests up to
about 1000 chars (including adding one extra char (or deleting the
last) and verifying that different vars result) - I have run that test
against bash with no problems at all.
I can't see any reason that much longer names would not work - given
that you understand that anything using them is not likely to run all
that fast (and will consume more memory than you'd expect probably).
kre
