Do I have to manually uninstall all dependent gems?

ruby-on-rails ruby rubygems dependencies

gem list | cut -d" " -f1 | xargs gem uninstall -aIx deletes all installed ruby gems!

ruby-on-rails ruby rubygems dependencies

As far as I know you're correct, there is not an easy way built-in to the gem command to do this.

However, you can check out gem-prune which can help clean up your gem repository after you've removed dm-core.

ruby-on-rails ruby rubygems dependencies

for gem in `gem list --no-version`; do  gem uninstall -aIx $gemdone

Works the best for me, not sure why but

gem list | cut -d" " -f1 | xargs gem uninstall -aIx

doesn't work on my system as it still complains...

ERROR:  While executing gem ... (Gem::InstallError)    cannot uninstall, check `gem list -d some-gem-here`

CodeHunter