Perl Command Switches (Refer:perlrun) make this task trivial. 
C:\Users\Bill\forums\monks>type zarath.pl
#!perl -naF;
our %seen;
print $F[1], "\n" if !$seen{$F[1]}++

C:\Users\Bill\forums\monks>perl zarath.pl 1202409.txt
SalesId
VK11070778
VK11070783
VK11070844
VK11070869
VK11070873
VK11070913
VK11070920
VK11070923
VK11070933
VK11074400
VK11074404
VK11074415
VK11074418
VK11074430
VK11074441
VK11074443
VK11074451
VK11074454
VK11074470
VK11074473
VK11074478

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Bill

In reply to Re: Removing doubles and printing only unique values by BillKSmith
in thread Removing doubles and printing only unique values by zarath

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