如何比较同一领域的价值？

Question

我有这个输入

name   num   value
A     1010232   1
A     1010232   2
A     1010232   3
B     2565214   1
B     2565214   2
B     2565214   3
C     6111111   2
C     6111111   3
.
.

O需要这样的输出：

the  name C has no "1"  value actually 

我对解决它的方法一无所知

Answer 1

你可以尝试：

awk -f chk.awk input.txt

其中chk.awk是：

{
    a[$1,$3]++
}

END {
    if (!("C","1") in a)
        print "the name C has no \"1\" value"
}

Answer 2

$ cat file                                                                    
name   num   value
A     1010232   1
A     1010232   2
A     1010232   3
B     2565214   1
B     2565214   2
B     2565214   3
C     6111111   2
C     6111111   3

$ awk '
NR>1 { seen[$1,$3]++; names[$1]; vals[$3] }
END {
    for (name in names)
        for (val in vals)
            if (!seen[name,val])
                printf "the name %s has no \"%s\" value actually\n", name, val
}
' file
the name C has no "1" value actually