Ruby Gems returns “command not found”

Question

Ubuntu 9.10

Just installed newgem

gem install newgem

and when i try

newgem new_project

I get

Answer 1

(Just stealing @John Franklin's comment)

$ gem environment

Will tell you the EXECUTABLE DIRECTORY. Then put whatever that value is in your PATH like so (in your .bashrc or other shell config file).

export PATH="$PATH:/path/to/bin"

Reload your shell and you should then be able to use the installed gem.