Follow along with the video below to see how to install our site as a web app on your home screen.
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awk 'NR==FNR{a[$2","$3","$6]=$0;next}[red]!([/red]$2","$3","$6 in a[red])[/red]{print a[$2","$3","$6]"\t"$0}' $*
awk 'NR==FNR{a[$2","$3","$6]=$0;next}!($2","$3","$6 in a)' $*