From: Wolfram Schneider <wosch@indexdata.dk>
Date: Fri, 23 Apr 2010 12:57:43 +0000 (+0000)
Subject: run only one instance of this script at a time
X-Git-Tag: CPAN-v1.02~99^2~1
X-Git-Url: http://git.indexdata.com/?p=irspy-moved-to-github.git;a=commitdiff_plain;h=328dfd27622bdf5d73a0748da8351e2ab21833fe;hp=328dfd27622bdf5d73a0748da8351e2ab21833fe

run only one instance of this script at a time

implemented by a simple self-written lockfile. Do not use lockfile(1)
due a bug in debian packages, for details see:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=565613
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