用于比较文件和两个字段的awk：

要将第一个文件字段$4与第二个文件字段$1进行比较，将第一个文件字段$8与第二个文件字段$2进行比较。然后仅从第一个文件打印匹配案例

我使用两个单独的命令来实现上述要求，请建议改进和避免两个步骤

Input.csv

Transaction ID,Request source,User name,SendMobNum,RecMobNum,ServiceClass,Service,Amount,CreditAmount,Bonus,Process fee
ABCD,SSS,EFG,1234,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,1234,9999,2345,AB,40,2,5,2
ABCD,SSS,EFG,1234,9999,2345,AB,60,3,6,3
ABCD,SSS,EFG,3456,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,3456,9999,2345,AB,40,2,5,2
ABCD,SSS,EFG,3456,9999,2345,AB,60,3,6,3
ABCD,SSS,EFG,5678,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,5678,9999,2345,AB,40,2,5,2
ABCD,SSS,EFG,5678,9999,2345,AB,60,3,6,3

master.csv

SendMobNum,Amount
1234,30
5678,15
2345,60
4567
8888

步骤1：检查第一个文件字段$4与第二个文件字段$1

awk ' BEGIN {FS = OFS = ","} FNR==NR {a[$1] = $0; next} ($4 in a) {print $0}' master.csv Input.csv >Op_step11.csv

Op_step11.csv

Transaction ID,Request source,User name,SendMobNum,RecMobNum,ServiceClass,Service,Amount,CreditAmount,Bonus,Process fee
ABCD,SSS,EFG,1234,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,1234,9999,2345,AB,40,2,5,2
ABCD,SSS,EFG,1234,9999,2345,AB,60,3,6,3
ABCD,SSS,EFG,5678,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,5678,9999,2345,AB,40,2,5,2
ABCD,SSS,EFG,5678,9999,2345,AB,60,3,6,3

步骤2：第一个文件字段$8与第二个文件字段$2

awk ' BEGIN {FS = OFS = ","} FNR==NR {a[$2] = $0; next} ($8 in a) {print $0}' master.csv Op_step11.csv >Op_step22.csv

Op_step22.csv

Transaction ID,Request source,User name,SendMobNum,RecMobNum,ServiceClass,Service,Amount,CreditAmount,Bonus,Process fee
ABCD,SSS,EFG,1234,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,1234,9999,2345,AB,60,3,6,3
ABCD,SSS,EFG,5678,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,5678,9999,2345,AB,60,3,6,3

Transaction ID,Request source,User name,SendMobNum,RecMobNum,ServiceClass,Service,Amount,CreditAmount,Bonus,Process fee
ABCD,SSS,EFG,1234,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,1234,9999,2345,AB,60,3,6,3
ABCD,SSS,EFG,5678,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,5678,9999,2345,AB,60,3,6,3

期望输出：

---

您想要的输出看起来像逻辑，而不是逻辑

awk -F, '
    NR == FNR {send[$1]; amt[$2]; next} 
    FNR == 1 || ($4 in send && $8 in amt)
' master.csv Input.csv 

Transaction ID,Request source,User name,SendMobNum,RecMobNum,ServiceClass,Service,Amount,CreditAmount,Bonus,Process fee
ABCD,SSS,EFG,1234,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,1234,9999,2345,AB,60,3,6,3
ABCD,SSS,EFG,5678,9999,2345,AB,30,1,4,1
ABCD,SSS,EFG,5678,9999,2345,AB,60,3,6,3