对指定模式的最高值的文件行进行排序。

Question

在包含一些性能信息的日志文件中，我希望根据每行写入的时间(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(按实时的递减顺序排序)：

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，不必要的行移到文件末尾。

Answer 1

使用sort

sort -rn -k7,7

n -数字排序

r -反向

-k7,7 -只使用第7字段进行排序(默认情况下，字段用空格分隔)