ngrok command not found
I'm trying to install ngrok (which I've been using for a while on Windows with no issues) on my 1 week old yosemite and these are the steps I've followed so far.
Downloaded ngrok from here https://ngrok.com/download.
Unziped the file and copied the Unix Executable File into application.
Now from what I understand I just need to open the terminal, move inside the application folder and write ngrok http 80. The result of this is "command not found".
I've even signed up at the ngrok website and run from terminal the command ./ngrok authtoken "blablabla" and the result is "No such file or directory"
Can anyone tell me how to proceed to be able to activate the tunnel with ngrok?
Answer
Short answer: Put the executable file in /usr/local/bin instead of applications. You should now be able to run commands like ngrok http 80.
Long answer: When you type commands like ngrok in the terminal, Macs (and other Unix OSs) look for these programs in the folders specified in your PATH. The PATH is a list of folders that's specified by each user. To check your path, open the terminal and type: echo $PATH.
You'll see output that looks something like: /usr/local/bin:/usr/bin:/bin. This is a : separated list of folders.
So when you type ngrok in the terminal, your Mac will look for this executable in the following folders: /usr/local/bin, /usr/bin/ and /bin.
Read this post if you are interested in learning about why you should prefer usr/local/bin over other folders.