#!/usr/bin/perl

while(<DATA>){

s/^\d\d//g;
print $_;
}

__DATA__
20070820
070223
20080929

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How to check if the date is in format 'YYYYMMDD' and replace it with 'YYMMDD'. 20070820 is in YYYYMMDD, is to replaced with 070820. 070223 is already in the format YYMMDD, so I should not replace it. Please tell me how to replace it.

In reply to date replace by Anonymous Monk

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