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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