Bourne shell "if" syntax

[dteske at freebsd.org]

> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org [mailto:owner-freebsd-
> questions at freebsd.org] On Behalf Of jb
> Sent: Monday, June 10, 2013 12:53 PM
> To: freebsd-questions at freebsd.org
> Subject: Re: Bourne shell "if" syntax
> 
> Michael Sierchio <kudzu <at> tenebras.com> writes:
> 
> > ...
> > Right.  Many scripts seem to assume that sh is bash, and that's
> > certainly not the case here.
> >
> > if [ "x$BLAH" = "x" ]; then
> >
> > is the most reliable and portable way of determining if it's a string
> > of zero length.
> 
> Actually this trick is not needed any more (it has not been required for
> long time because the problem was fixed).
> http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2012-
> August/004275.html
> 

The above link reinforces what I mentioned earlier as the divide.

Differs based on whether "[" is a built-in versus /usr/bin/[
-- 
Devin

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