awk.md

偶数行だけ1列目に「ふる」をつける

cat file.txt | awk 'BEGIN {OFS="\t"} NR%2==0 {print $1"ふる",$2,$3} NR%2==1 {print $0}'

• https://stackoverflow.com/questions/7841607/how-can-i-combine-odd-and-even-numbered-lines

3列目が true で7列目が false の行だけ出力する

cat file.txt | awk '$3 == "true" && $7 == "false" {print $0}'