1.在终端输入：vim ~/.bash_profile
2.在里面添加：export PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/X11R6/bin:.
3.在:wq后，输入：source ~/.bash_profile
执行yii2控制台命令时报错：-bash: yii: command not found
原文：https://www.cnblogs.com/xuwenjie/p/10148321.html
