--- File.install(from, to[, mode = nil[, verbose = false]])
      ե򥳥ԡ⡼ɤꤹ롣
      ԡ褬¸ߤϰöΤǡԡΥե뤬
      ¾Υե˥ϡɥ󥯤ƤСΥ󥯤ڤ롣
      install (install(1) [manual page])ޥɤ

