/INPUT=filespec

    Causes each line of the input file to be added to the recall
    buffer. If a file type is not specified with the file name,
    .LIS is the default. The file specification cannot include the
    asterisk (*)  and the percent sign (%) wildcard characters.

    If the /ERASE qualifier is also specified, the contents of the
    recall buffer are erased before the contents of the specified
    file are read into the recall buffer.

    The /INPUT qualifier is incompatible with the /ALL and /PAGE
    qualifiers.