cmake :command not found

今天安装cmake 完成之后， 使用时遇到一个问题：command not found

很奇怪，cmake已经安装了，为什么会有这个提示，查找internet发现：

1.9.3 has a dependency on cmake. If you aren't root on the box you can download cmake from http://www.cmake.org/, configure and install it using --prefix=~/cmake/ then export PATH=~/cmake/bin/:$PATH to install cmake in your home directory and use it to configure Anope.

我把cmake 安装在了/opt/下也就是/opt/cmake 

按照提示需要在终端执行 命令：export PATH=/opt/cmake/bin:$PATH

OK,再执行cmake软件编译就没有错误提示了。