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#!/usr/bin/env perl -l ... 2.2.2.2 4 100 273 274 2 0 0 04:30:05 0 3.3.3.3 4 100 273 274 2 0 0 04:30:05 0 4.4.4.4 4 100 273 273 2 0 0 04:30:00 0
$ cat pm_1082609_all.csv 2.2.2.2,4,100,273,274,2,0,0,04:30:05,0 3.3.3.3,4,100,273,274,2,0,0,04:30:05,0 4.4.4.4,4,100,273,273,2,0,0,04:30:00,0
$ cat pm_1082609_sel.csv 192.168.10.3,2.2.2.2,04:30:05 192.168.10.3,3.3.3.3,04:30:05 192.168.10.3,4.4.4.4,04:30:00