> 
> **Possible Duplicate:**  
> 
> [How to correctly add a path to PATH?](https://unix.stackexchange.com/questions/26047/how-to-correctly-add-a-path-to-path) 
> 
> 
> 

I installed "perf" on Linux.
But I can only use it by specifying the path: `~/bin/perf`

I checked path by using `echo` and I found `/bin` is there.

What else should I do?