如果是初次安装&＃xff0c;没有安装任何其他 gem 的话&＃xff0c;下面脚本&＃xff1a;
#!/usr/bin/env sh
prefix&＃61;/usr/local
sudo rm ${prefix}/bin/erb
sudo rm ${prefix}/bin/gem
sudo rm ${prefix}/bin/irb
sudo rm ${prefix}/bin/rake
sudo rm ${prefix}/bin/rdoc
sudo rm ${prefix}/bin/ri
sudo rm ${prefix}/bin/ruby
sudo rm ${prefix}/bin/testrb
sudo rm -rf ${prefix}/include/ruby-*
sudo rm -rf ${prefix}/lib/ruby
sudo rm -rf ${prefix}/lib/pkgconfig
sudo rm ${prefix}/lib/libruby-static.a
sudo rm -rf ${prefix}/share/doc/ruby
sudo rm -rf ${prefix}/share/ri
sudo rm ${prefix}/share/man/man1/erb.1
sudo rm ${prefix}/share/man/man1/irb.1
sudo rm ${prefix}/share/man/man1/rake.1
sudo rm ${prefix}/share/man/man1/ri.1
sudo rm ${prefix}/share/man/man1/ruby.1
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