SHLVL in ash

[Mike Frysinger]

On Thursday 02 January 2014 11:55:51 Ron Yorston wrote:
> I've just been having a look at 1.22.0.  I note that BusyBox ash doesn't
> export SHLVL.  If whatever invokes ash doesn't have SHLVL set or doesn't
> have it exported each new shell has a SHLVL of 1:

correct.  busybox knows nothing of SHLVL.  it's just another env var to 
busybox.  so if you set/export/whatever it, then busybox will pass it along 
unmodified.
-mike
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