undef_system_command(command) -> Shell::CommandProcessor
[permalink][rdoc]commandを削除します.
動作例:
require 'shell' Shell.def_system_command("ls") # ls を定義 Shell.undef_system_command("ls") # ls を 削除 sh = Shell.new begin sh.transact { ls("-l").each {|l| puts l } } rescue NameError => err puts err end