在使用ubuntu时发现一些奇怪的现象，明明定义了PATH，而且普通用户也可以调用，sudo却调用不了，报command not found的错误。
google之后知道是编译sudo的时候加入了–with-secure-path，这个选项。
–with-secure-path[=PATH]
Path used for every command run from sudo(8). If you don’t trust the people running sudo to have a sane PATH environment variable you may want to use this. Another use is if you want to have the “root path” be separate from the “user path.” You will need to customize the path for your site. NOTE: this is not applied to users in the group specified by –with-exemptgroup. If you do not specify a path, "/bin:/usr/ucb:/usr/bin:/usr/sbin:/sbin:/usr/etc:/etc" is used.
知道了问题就好解决了，要么重新编译sudo，要么在环境配置文件里加一个alias
:::sh
alias sudo='sudo env PATH=$PATH'