yiwuyun

佩服。好像这样也可

gawk -F"," "$6>data[$1$2]{data[$1$2]=$0} END{for (line in data)print data[line]}" a.txt
复制代码

改成这样：

gawk -F"," "$6>a[split(data[$1$2],a,\",\")]{data[$1$2]=$0} END{for (line in data)print data[line]}" 2.txt
复制代码

yiwuyun

$6和$0比较，就是$6和$6比较。逗号分隔符的计算就是以最后一个为准。认识错了。
gawk -F"," "$6>int(data[$1$2]){data[$1$2]=$0} END{for(line in data)print data[line]}" a.txt

yiwuyun

嗯。多谢指正，考虑不周，实际应用应多取几段，或者再多加几根下划线。这样重复的概率就小多了。