shell 中变获取值及运算的几种方法

num=$(tail ./image/1.txt -n 1)

num=$(($num+1))

posted on 2017-09-02 22:56  Malphite  阅读(246)  评论(0)  编辑  收藏  举报
Powered by:
博客园
Copyright © 2024 Malphite
Powered by .NET 8.0 on Kubernetes