shell常用命令

# 分组排序
awk '{print substr($1,1,16),$2}'| awk '{
    group[$1][$2] = 1;
}
END{
    for (key1 in group){
    count=0;
    for (key2 in group[key1]){
        count++
    }
    print key1,count;
   }
}'|sort -k1