# Change content on all files
tmp_file = "#{path}.tmp"
system(%(sed 's/foreman_plugin_template/#{snake}/g' #{path} > #{tmp_file}))
system(%(sed 's/ForemanPluginTemplate/#{camel}/g' #{tmp_file} > #{path}))
system(%(sed 's/foremanPluginTemplate/#{camel_lower}/g' #{tmp_file} > #{path}))
system(%(rm #{tmp_file}))
third changes replace second changes.