awk -F, '$2 == "false" {data[$1]=$2 } $2=="true" { if ( data[$1]!="false" ) { data[$1]=$2 } } END { OFS=","; for (item in data) { print item,data[item] }}' input DopeGhoti
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awk -F, '$2 == "false" {data[$1]=$2 } $2=="true" { if ( data[$1]!="false" ) { data[$1]=$2 } } END { OFS=","; for (item in data) { print item,data[item] }}' input