在文件中对具有指定模式的最高值的行进行排序

Question

在包含一些性能信息的日志文件中，我想根据每行中写入的经过时间（实时）按递减顺序对行进行排序。例如：

Operation1 cpu-time = 10 real-time = 4 malloc = 1006
Operation2 cpu-time = 12 real-time = 5 malloc = 1002
// other info1 (without time or memory measurments)
Operation3 cpu-time = 9 real-time = 10 malloc = 1003
// other info2 (without time or memory measurments)

输出应该是这样的（按实时降序排序）：

Operation3 cpu-time = 9 real-time = 10 malloc = 1003
Operation2 cpu-time = 12 real-time = 5 malloc = 1002
Operation1 cpu-time = 10 real-time = 4 malloc = 1006
// other info1 (without time or memory measurments)
// other info2 (without time or memory measurments)

请注意，不必要的行已移至文件末尾

Answer 1

使用sort：

sort -rn -k7,7

n - 数字排序

r - 反向

-k7,7 - 仅使用第7个字段进行排序（字段默认用空格分隔）