$KCODE = 'UTF-8'

require 'fileutils'
include FileUtils
で
./hiki_data_copy.cgi: line 3: =: command not found
./hiki_data_copy.cgi: line 5: require: command not found
./hiki_data_copy.cgi: line 6: include: command not found
とエラーになるのですが、どうすれば良いですか。