Day: January 20, 2018

UNIX tip of the day: two file processing with AWK

I recently came across some AWK code from a work colleague that I did not understand at all awk -F’\t’ -v OFS=’\t’ ‘FNR==NR{a[$1]=$1;next};$1 in a{print $1,$2,$3}’ file1 file2 I usually like to understand code instead of blindly copying and pasting, so I did a little research into what this was doing. Searching for “awk FNR…

January 20, 2018

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UNIX tip of the day: two file processing with AWK