一条显示脚本中某段代码执行时间的小函数。
- export befor_date
- export now_date
- befor_date=$(date +%s -d "$(date +%F' '%T)")
- dateflag(){
- now_date=$(date +%s -d "$(date +%F' '%T)")
- time_distance=(expr{now_date} - ${befor_date})
- hour_distance=(expr{time_distance} / 3600)
- hour_remainder=(expr{time_distance} % 3600)
- min_distance=(expr{hour_remainder} / 60)
- min_remainder=(expr{hour_remainder} % 60)
- echo -e "\t\t\t\tTime:\thourdistance:{min_distance}:${min_remainder} "
- befor_date="${now_date}"
- }
只需要把dateflag放置到代码段的前后，便可以显示出代码段的执行时间，非常方便对脚本性能的调试。
灵感来源：http://roclinux.cn/?p=1781
显示效果如下： Time: 0:0:0
============TCP&UDP========================
<<<<<192.168.2.3
TCP:3460 OK
Time: 0:0:10
TCP:3461 OK
Time: 0:0:10
<<<<<172.16.2.13
TCP:4040 OK
Time: 0:0:1
TCP:3200 OK
Time: 0:0:1
TCP:4340 OK
Time: 0:0:1
TCP:4041 NOK
Time: 0:0:1
TCP:3201 NOK
Time: 0:0:0
TCP:4341 NOK
Time: 0:0:1
<<<<<172.16.2.14
TCP:4044 NOK
Time: 0:0:1
TCP:3200 NOK
Time: 0:0:1
TCP:4344 NOK
Time: 0:0:1
TCP:4045 NOK
Time: 0:0:0
TCP:3201 NOK
Time: 0:0:1
TCP:4345 NOK
Time: 0:0:1
<<<<<172.16.2.1
TCP:3000 OK
Time: 0:0:1
TCP:3001 OK
Time: 0:0:1
TCP:3002 OK
Time: 0:0:1
TCP:3003 OK
Time: 0:0:1
<<<<<172.16.2.2
TCP:3000 OK
Time: 0:0:1
TCP:3001 OK
Time: 0:0:1
TCP:3002 OK
Time: 0:0:0
TCP:3003 OK
Time: 0:0:1
<<<<<192.168.2.1
TCP:3460 OK
Time: 0:0:11
TCP:3461 OK
Time: 0:0:12
<<<<<192.168.2.2
TCP:3460 OK
Time: 0:0:16
TCP:3461 OK
Time: 0:0:17
本文转自xiaoyuwang 51CTO博客，原文链接：http://blog.51cto.com/wangxiaoyu/630603，如需转载请自行联系原作者
