root@curiosity:/opt/lib/ruby/1.9.1# ruby pathname.rb
/opt/bin/ruby: line 8: require: command not found
/opt/bin/ruby: line 9: require: command not found
/opt/bin/ruby: line 10: require: command not found
/opt/bin/ruby: line 12: required_version: command not found
/opt/bin/ruby: line 14: unless: command not found
/opt/bin/ruby: line 15: abort: command not found
/opt/bin/ruby: line 16: end: command not found
/opt/bin/ruby: line 21: syntax error near unexpected token `('
/opt/bin/ruby: line 21: `args = !ARGV.include?("--") ? ARGV.clone : ARGV[0...ARG
V.index("--")]'
root@curiosity:/opt/lib/ruby/1.9.1#