Rails命令不存在

Question

In Ubuntu 12.04, gem install rails succeeds, but when I try rails -v I get an error message saying:

The program rails is currently not installed. You can install it by ...

How can I get the rails command to work?

Answer 1

I've never had this problem, but for rails to be found, the rails binary file must be on the path. That is, in a directory listed in the PATH environment variable.

To see the value of the PATH environment variable.

echo $PATH
env | grep PATH

You might try uninstalling rails, and then reinstalling.

Answer 2

Problem solved!!!

I just type source .rvm/scripts/rvm in my HOME path, and it works!!!

Answer 3

You should put the following in your ~/.profile or ~/.bashrc , because in your solution you will need to write your source ... after every reboot:

# This loads RVM into a shell session.
[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"