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@S1SYPHOS
Created January 22, 2018 18:29
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This script removes all ruby gems except default ones.
#!/usr/bin/env ruby
`gem list -d`.split(/\n\n^(?=\w)/).each do |data|
match = data.match(/(?<name>([^\s]+)) \((?<versions>.*)\)/)
name = match[:name]
versions = match[:versions].split(', ')
if match = data.match(/^.*\(([\d\.]*),? ?default\): .*$/)
next if match[1].empty? # it's the only version if this match is empty
versions.delete(match[1] || versions[0])
end
versions.each { |v| system "gem uninstall -Ix #{name} -v #{v}" }
end
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