RabbitMQ command doesn't exist?

From the docs:

The RabbitMQ server scripts are installed into /usr/local/sbin. This is not automatically added to your path, so you may wish to add PATH=$PATH:/usr/local/sbin to your .bash_profile or .profile. The server can then be started with rabbitmq-server.

All scripts run under your own user account. Sudo is not required.

You should be able to run /usr/local/sbin/rabbitmq-server or add it to your path to run it anywhere.

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Your command failed because, by default, . is not on your $PATH. You went to the right directory (/usr/local/sbin) and wanted to run the rabbitmq-server that existed and had exec permissions, but by typing rabbitmq-server as a command Unix only searches for that command on your $PATH directories - which didn't include /usr/local/sbin.

What you wanted to do can be achieved by typing ./rabbitmq-server - say, execute the rabbitmq-server program that is in the current directory. That's analogous to running /usr/local/sbin/rabbitmq-server from everywhere - . represents your current directory, so it's the same as /usr/local/sbin in that context.

My OS: macOS Sierra 10.12.5

My RabbitMQ was installed using:

brew install rabbitmq

And it was installed into /usr/local/Cellar, just in case if someone has same situation with me, you would need to do similarly:

In terminal:

ls /usr/local/Cellar/rabbitmq/

to check which version you have installed, and then add to .bash_profile:

export PATH=/usr/local/Cellar/rabbitmq/<version>/sbin:$PATH

Hope this helps.

As rabbitmq-server resides in /usr/local/sbin, running this command will enable starting server from anywhere:

export PATH=/usr/local/sbin:$PATH