Documentation ≈ Implementation

• Documentation

  • Usage:
           cat {<filename>}     -- concatenate files
           ls [-l] {<filename>} -- list files (long)
           date                 -- print current date and time
           help                 -- show usage
    

• Implementation

  • silly
      = cmd "cat"  cat  <@ files              :-- "concatenate files"
      ! cmd "ls"   ls   <@ flag "-l" <@ files :-- "list files (long)"
      ! cmd "date" date                       :-- "print current date and time"
      ! cmd "help" help                       :-- "show usage"