1 HPX HPX transfers data files between the computer and the HP2648a terminal display or tape cartridges. Four types of command are available: Copy disk file(s) to terminal device(s): >HPX device-spec[s]=input_files[/AS][/BI] Copy from terminal device to disk file: >HPX output-file[/SP][/AP]=device-spec[/AS][/BI] Compare device with disk file: >HPX file[/SP]=device-spec[/AS][/BI]/CMP Position tape only: >HPX [/RT:n][/LT:n] HPX does not support intra-device transfers, as these can be done locally. Valid devices are: /DI = screen display, /LT = left tape, /RT = right tape. See HELP HPX DEVICES for further details on device selection and control. See HELP HPX SWITCHES for information on other switches. 2 DEVICES device-specs are: /DI Screen display /LT:n File n on left tape (default n = next file) unsigned n is absolute, signed n is relative to current position. /LT:A Append to end of last file on tape. /LT:C Condition tape and rewind to first file. /LT:E Start a new file after last file on tape. /LT:R Rewind tape to start at first file. /RT:x As above, for right tape. /PR Printer 2 SWITCHES See HELP HPX DEVICES for device specifications. Other switches are: /AS ASCII data to be transferred = /-BI [default] /BI Binary transfer mode required = /-AS /FO Flag output file as having FORTRAN carriage-control /SP Spool output file to printer /AP Append output to existing file /LA Latch current switch settings for next command line /WBR Use write-backspace-read mode [default = /-WBR = don't] /CMP This is a compare operation [default = /-CMP = copy operation] /LI List file(s) copied if wildcards or 1 input file [default] /-LI Don't list file(s), even if wildcards etc. /EL Reset character set and/or emphasis at end of ASCII lines [/-EL]