特定のコマンドのヘルプの表示

Shell> help ls -b
Lists a directory's contents or file information.

LS [-r] [-a[attrib]][-sfo][file]format:
  -r     - Displays recursively (including subdirectories)
  -a     - Displays only those files with the attributes of type attrib. 
           If no attributes are listed, all files will be listed. If -a is 
           not specified, all non-system and non-hidden files will be 
           listed.
  -sfo   - Displays information in Standard-Format Output.
  attrib - File attribute list:
             a - Archive
             s - System
             h - Hidden
             r - Read-only
             d - Directory
  file   - Name of file or directory (wildcards are permitted)

NOTES:
  1. This command lists directory contents or file information. If no file
     name or directory name is specified, the current working directory
     is assumed.
  2. The contents of a directory are listed if all of the following are 
     true:
       - If option -r is not specified
       - If no wildcard characters are specified in the file parameter
       - If file represents an existing directory
  3. In all other cases, the command functions as follows:
       - All files/directories that match the specified name are displayed.
       - The -r flag determines whether a recursive search is performed.
       - The option flag -a[attrib] tells the command to display only those
         files with the attributes that are specified by [attrib].