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<title>Crontab - doing things periodically</title>
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<meta name="Keywords" content="DX Cluster, DXSpider, Spider, Packet Cluster, DXCluster, Pavillion Software, AK1A, AX25, AX.25, WWV, Packet Radio, Amateur Radio, Propagation, DX, DXing, G1TLH, GB7TLH, Dirk Koopman, Mailing list, Linux, RedHat, PERL">
<meta name="Description" content="Software and systems for realtime digital communications between amateur radio stations for the provision of information on propagation conditions and stations operating">
<meta name="Author" content="Dirk Koopman G1TLH">
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<!-- Created: Sun Dec 13 20:25:14 GMT 1998 -->
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-Last modified: Sun Jan 24 15:30:56 GMT 1999
+Last modified: Fri Jan 19 14:25:13 GMT 2001
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<h4>Introduction</h4>