使用awk命令对两个文件进行算术比较

Question

我有两个文件：

文件1

*Name|Date|id|Total*
Jimmy|03-OCT-18|BST100114262|20000
Dedi|03-OCT-18|BST100904288|10000

文件2

*Name|Amount*
Anton|9800
Jimmy|90000

输出：Jimmy | 20000 | 90000 | 18000000

我试过了，但没有成功。

awk -F'|' 'NR==FNR{a[$1]=$1; next} (($1 in a) && (a[$4] >= $2 )) { print a[$4]*$2 }'

Answer 1

另一个：

$ awk 'BEGIN{FS=OFS="|"}($1 in a)&&FNR>1{print $1,a[$1],$NF,a[$1]* $NF}{a[$1]=$NF}' file1 file2

输出：

Jimmy|20000|90000|1800000000

解释了一些使用吉米：

$ awk '
BEGIN { FS=OFS="|" }               # set separators
($1 in a) && FNR>1 {               # if key to hash (Jimmy) is in a excluding headers
print $1,a[$1],$NF,a[$1]* $NF  # process Jimmy
# next                         # this excludes new Jimmy from being rehashed to a
}
{
a[$1]=$NF                      # ... in here where everything is hashed and  the
}' file1 file2                     # ... existing rehashed