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You could try something like this:
awk 'NR==FNR{A[$1]=1;next}/cmmac/&&!A[$2]{print p RS $0}{p=$0}' file1 file2
or
awk 'NR==FNR{A[$1]=1;next}{p=$0;getline}!A[$2]{print p RS $0}' file1 file2

Please give an exemple of the wanted output

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awk '{y=x;x=$0}$0~/cmmac/&&!A[$2]++{print "This record will...