示例 csv:
AAA, BBB, CCC, DDD, EEE, FFF, GGG, HHH
现在我不需要复制第 2 列 (BBB) 并将其添加到第 3 列前面,因此文件如下所示:
AAA, BBB, BBB, CCC, DDD, EEE, FFF, GGG, HHH
答案1
$ cat test.txt
AAA, BBB, CCC, DDD, EEE, FFF, GGG, HHH
AAA, BBB, CCC, DDD, EEE, FFF, GGG, HHH
AAA, BBB, CCC, DDD, EEE, FFF, GGG, HHH
$ awk -F, '{$2=$2","$2}1' OFS=, test.txt
AAA, BBB, BBB, CCC, DDD, EEE, FFF, GGG, HHH
AAA, BBB, BBB, CCC, DDD, EEE, FFF, GGG, HHH
AAA, BBB, BBB, CCC, DDD, EEE, FFF, GGG, HHH
答案2
awk '{print $1,$2,$2,$3,$4,$5,$6,$7,$8}' file.csv
例子:
➤ echo "AAA, BBB, CCC, DDD, EEE, FFF, GGG, HHH" | awk '{print $1,$2,$2,$3,$4,$5,$6,$7,$8}'
AAA, BBB, BBB, CCC, DDD, EEE, FFF, GGG, HHH