Need Some Help with "diff"

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RedHat Need Some Help with "diff"

Compare two files and remove duplicates and display the output of "FILE-A"

For instance





Output should be :



Last edited by Scrutinizer; 11-21-2012 at 07:22 PM.. Reason: code tags
# 2  
awk 'FNR==NR{f[$0]; next;} { if(!($1 in f)) print;} ' fileB fileA

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# 3  
# 4  
try and use this
grep -vf fileb filea


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