Append Lines command

    Purpose:  Adds the specified number of lines from disk to the file be-
              ing edited in memory. The lines are added at the end of the
              current lines in memory.

    Format:   [n]A

    Remarks:  This command is only meaningful if the file being edited is
              too large to fit in memory. As many lines as possible are
              read into memory for editing when you start EDLIN. If you do
              not specify the number of lines, lines are appended to memo-
              ry until available memory is 75% full. No action is taken if
              available memory is already 75% full.

              To edit the remainder of the file that will not fit into mem-
              ory, you must write edited lines in memory to disk before you
              can load unedited lines from disk into memory by using the
              Append Lines command. Refer to the Write Lines command for
              information on how to write edited lines to disk.

              The message End of input file is displayed when the Append
              Lines command has read the last line of the file into memory.