シェルやgrepコマンドなどでデータを集計する方法 ## ARTIST ARTIST ARTIST SONG ARTIST ARTIST ARTIST ARTIST 2017110 "ARTIST""SONG" ## 5 2 30 cat data.txt | grep -o "\tARTIST\t.*" | sort | uniq -c | sort -nr 5 ARTIST 2 ARTIST "ARTIST" Ruby()grep cat data.txt | grep -o "\tARTIST\t.*" | grep -o "ARTIST\t.*$" | grep -o "\t.*$" | grep -o "\S.*$" | sort | uniq -c | sort -nr grep 5 2

metropolisgrepcutawk
`cat data.txt | awk '$2=="ARTIST" {print $3}' | sort | uniq -c | sort -nr`