我在mac上使用pip 安装frida，显示
Requirement already satisfied: frida in /Users/tomyang/Library/Python/2.7/lib/python/site-packages
Requirement already satisfied: colorama>=0.2.7 in /Library/Python/2.7/site-packages (from frida)
Requirement already satisfied: prompt-toolkit>=0.57 in /Library/Python/2.7/site-packages (from frida)
Requirement already satisfied: pygments>=2.0.2 in /Library/Python/2.7/site-packages (from frida)
Requirement already satisfied: wcwidth in /Library/Python/2.7/site-packages (from prompt-toolkit>=0.57->frida)
Requirement already satisfied: six>=1.9.0 in /Library/Python/2.7/site-packages (from prompt-toolkit>=0.57->frida)
在iphone上，也通过cydia安装了。
但为什么显示**-sh: frida-ps: command not found**