INQUIRE: RECORDTYPE Specifier

The RECORDTYPE specifier asks which type of records are in a file. It takes the following form:

RECORDTYPE = rtype

rtype
Is a scalar default character variable that is assigned one of the following values:

'FIXED'   If the file is connected for fixed-length records 
'VARIABLE'   If the file is connected for variable-length records 
'SEGMENTED' If the file is connected for unformatted, sequential data transfer using segmented records
'STREAM' If the file's records are not terminated
'STREAM_CR' If the file's records are terminated with a carriage return
'STREAM_LF' If the file's records are terminated with a line feed
'STREAM_CRLF' If the file's records are terminated with a carriage return/line feed pair
'UNKNOWN' If the file is not connected