cd                  Change current directory                            ;display_bmhelp "cd"
 del                 Delete file                                         ;display_bmhelp "del"
 edit_file           Edit a file                                         ;display_bmhelp "edit_file"
 exist               Check to see if a file exists                       ;display_bmhelp "exist"
 file_pattern        Set up a pattern for file searching                 ;display_bmhelp "file_pattern"
 find_file           Search for file names matching file_pattern         ;display_bmhelp "find_file"
 getwd               Get the working directory name                      ;display_bmhelp "getwd"
 inq_names           Get file and buffer name                            ;display_bmhelp "inq_names"
 load_macro          Load a macro file                                   ;display_bmhelp "load_macro"
 output_file         Set name of output file for current buffer          ;display_bmhelp "output_file"
 read_file           Insert a copy of a file into current buffer         ;display_bmhelp "read_file"
 write_block         Write marked block to a file                        ;display_bmhelp "write_block"
 write_buffer        Write current buffer to disk                        ;display_bmhelp "write_buffer"