来自文本文件的AWK / Linux脚本计算

I wrote an AWK script that read files and multiplies rows by columns and sum them up. I want to pass several files (any number of files) as an argument in awk script at a time e.g. A.txt, B.txt, C.txt. I want the AWK script to give me sum of rows and columns. I always want to skip first 5 columns from each text file. I wrote an AWK script that read files and multi