Date: Mon, 10 Jun 2013 19:52:37 +0000 (UTC) From: jb <jb.1234abcd@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Bourne shell "if" syntax Message-ID: <loom.20130610T214814-692@post.gmane.org> References: <51b620a6.42f.2b6a6400.5605dcf0@go2france.com> <121701ce660c$9a9aa5b0$cfcff110$@freebsd.org> <51B62389.5000500@tundraware.com> <121b01ce660e$2abae5f0$8030b1d0$@freebsd.org> <51B62622.1070201@tundraware.com> <CAHu1Y70FNX8G2ARF5zBzRbu5iMsXVkUCouBk-YruY3xH1gWsqg@mail.gmail.com>
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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 jb
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