更改 CSV 文件中的列值

Question

在 csv 文件中，我有下面的列，我尝试使用
awk -F ',' -v OFS=',' '$1 { $2=$2*2; print}' path/file.csv > output.csv 更改第二列的值。
但它返回零并删除双引号。

文件.csv

"sku","0.47","supplierName"
"sku","3.14","supplierName"
"sku","3.56","supplierName"
"sku","4.20","supplierName"

输出.csv

"sku",0,"supplierName"
"sku",0,"supplierName"
"sku",0,"supplierName"
"sku",0,"supplierName"

Answer 1

您可以在 FS 值中指定多个字符。

$ awk -v FS="\",\"" -v OFS="\",\"" '{$2=$2*2}1' file
"sku","0.94","supplierName"
"sku","6.28","supplierName"
"sku","7.12","supplierName"
"sku","8.4","supplierName"

如果你想四舍五入到小数点后两位，试试这个。

$ awk -v FS="\",\"" -v OFS="\",\"" '{$2=sprintf("%.2f",$2*2)}1' file
"sku","0.94","supplierName"
"sku","6.28","supplierName"
"sku","7.12","supplierName"
"sku","8.40","supplierName"