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Uninstall all gems in Ruby 2.x
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| #!/usr/bin/env sh | |
| gems=`gem list --no-versions` | |
| default_gems=(bigdecimal io-console json minitest psych rake rdoc test-unit) | |
| for gem in $gems; do | |
| if [[ ${default_gems[*]} != *$gem* ]]; then | |
| gem uninstall $gem -aIx | |
| fi | |
| done |
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As of version 2.1.0, you can simply do
gem uninstall -aIx.