[Wtr-general] [OT] - Gem upgrade?

[Dave Burt]

Raghu Venkataramana wrote:
> How does one upgrade gems? when I do a gem install on the latest gem, I 
> find two versions of the same application installed:
> 
> for example,
> wet-web (0.5, 0.9)
> 
> I am only left with an option to first uninstall the previous version of 
> GEM and then installing the new one. Is there a way to specify (while 
> installing the gem) that only the latest version needs to be kept and 
> the previous version can be removed?
> 
> Any help is appreciated

Use this command to remove all old versions of gems you have installed:

gem cleanup

However, as Bret said, there's no harm in leaving them there. One of
RubyGems's features in fact is the ability to require a certain version
of a gem library:

require_gem "watir", "1.4"

require_gem "watir", ">=1.4"

Cheers,
Dave