参考:
https://unix.stackexchange.com/questions/89386/what-is-symbol-and-in-unix-linux
https://superuser.com/questions/335396/what-is-the-difference-between-and-in-bash
原文链接:https://blog.youkuaiyun.com/zhaominpro/article/details/82630528
参考:
https://unix.stackexchange.com/questions/89386/what-is-symbol-and-in-unix-linux
https://superuser.com/questions/335396/what-is-the-difference-between-and-in-bash
原文链接:https://blog.youkuaiyun.com/zhaominpro/article/details/82630528