[SOLVED] file not in PATH, gem executables will not run

**mamboze** · November 28th, 2008

Hi,
I've installed gems for merb - a Ruby web framework and I get these error messages:
WARNING: Installing to ~/.gem since /usr/lib/ruby/gems/1.8 and
/usr/bin aren't both writable.
WARNING: You don't have /home/roy/.gem/ruby/1.8/bin in your PATH,
gem executables will not run.
When i run merb, I get an error message
$ merb-gen app ruby_bookshop
bash: merb-gen: command not found

I tried to make the above files writable but I couldn't save the file permissions I changed as root.
Could anybody tell me where I can find PATH ?
Any help much appreciated.

**taurus** · November 28th, 2008

Just add these two lines to the end of your ~/.bashrc.

Code:

PATH=$PATH:/home/roy/.gem/ruby/1.8/bin
export PATH

Save it and run

Code:

source ~/.bashrc

**mamboze** · November 29th, 2008

Hi taurus,

It worked perfectly. Thank you very much for your very prompt help. It's much appreciated.

Roy

**giac0m0** · October 5th, 2011

Hello Taurus, following your instructions on 11.04 but it didn't work for me (I changed the path to my home directory). I got no responses from adding the lines to .bashrc or running the script using the 'source' command.