I don't understand how 'if-flag' works in zone command. I already read 'building.doc', but still I don't understand. In the document, Building.doc, it says "If if-flag for a command is 1, that command is only executed if the command immediately before it was excuted as well." What it means by this? I looked at 'db.c', but still I don't get it. Maybe, I am so dumb. Please somebody explain to me. Thanks. ------------- yong@cse.unl.edu
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