rvm command not found

I installed rvm with rails, from the official website of RVM, I specified the command suggested by the tutorial.
When the installation my system has rails 4.0.0, rvm 01/23/12, ruby 2.0.0, bundler gem 1.3.5 and 2.0.3
But I need to install ruby 1.9 to practice with a course that I am currently doing. "Rails for Zombies 2"
I try to execute the instruction `rvm install 1.9.3` and the console returns this message:
`rvm: command not found`

some steps to follow:

Prerequisites: Homebrew (should be pre-installed )

1. brew install gnupg

2. Install GPG keys (there is 2 way to install given below, pick any one)

first-way ==>$ gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB

second-way ==> $ gpg --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB


3. install RVM


run: $ \curl -sSL

[To see links please register here]

| bash

We will receive a thank you 🙏 message in the console. Quit all Terminal and Launch a new Terminal.

4. $ rvm list

we will get this message (# No rvm rubies installed yet. Try 'rvm help install'.)

5. $ rvm install 2.7.1 (choose any you want to install)

6. $ rvm list

you will find which ruby version currently you are using need to change here as default.



7.$ rvm alias create default 2.7.1



now your version will be set. Enjoy

The latest installation needs the users to be added to the Group `rvm` and then need to login again.

Please note that closing the terminal and reopening is not enough; the user has to logout and log back to take the Group addition in effect.

Adding the user to the Group can be done by:
```
sudo usermod -a -G rvm <user>
```
The binaries can also be at different locations based on the method you followed during the installation.
I had them at `/usr/share/rvm/`

You can also look at `/usr/local/rvm/scripts/rvm`


Then you add this line to the end of `~/.bashrc`

```
[[ -s /usr/share/rvm/scripts/rvm ]] && source /usr/share/rvm/scripts/rvm
```
**Note:** If you are using a shell other than `bash` you may need to add the path accordingly.


For instance, if you using `zsh` shell add the above lines to the `~/.zshrc` file.

I had this problem after installing zsh. I'm a domain user so my $PATH and $HOME are not as straight-forward. What worked for me was

```echo "source /usr/share/rvm/scripts/rvm" >> ~/.zshrc```

Possible duplicate of:

[To see links please register here]

---

**Your problem is** that RVM is not loaded when you open a new terminal.

**To solve this**, run this command line: (**if using login-shell**)

echo "source $HOME/.rvm/scripts/rvm" >> ~/.bash_profile

Or this (**if using non-login shell**):

echo "source $HOME/.rvm/scripts/rvm" >> ~/.bashrc

Or if you are using `zsh` (and/or oh-my-zsh):

echo "source $HOME/.rvm/scripts/rvm" >> ~/.zshrc


This will add the path to RVM to load at each Terminal instantiation. You must either close and reopen your terminals or simply call `source ~/.bashrc` (or `~/.bash_profile` or `~/.zshrc`).