LISTIO LISTIO Use the LISTIO command in eMS/DOS to display a assignments for system and/or programmer logical units
machine. The format of the LISTIO command is:
list of current
in your virtual r , , SYS I , LISTIO PROG [ (options ••• [) ]] , , SYSxxx QR:tiQ!!§: I , A r , I , IEXEC , [ STAT] , , 111 ,APPENDI I , L I '- -J SYS requests a list of the physical devices assigned to all system
logical units. PROG requests a list of the physical devices assigned to programmer
logical units SYSOOO through SYS2Ql. SYSxxx requests a display of the physical device assigned to the
particular logical unit specified.
requests a list of only those logical units that have been
assigned to physical devices. UA requests a list of only those logical units that have not been
assigned to physical devices; that is, that are unassigned. 111 requests a list of the physical units assigned to all system and
programmer logical units. If no operand is specified, ALL is the
default. QQtiQ!!§: The EXEC and APPEND options are mutually exclusive; if both
are entered on the command line, the last one entered is in effect. EtEC erases the existing $LISTIO EXEC file, if one exists, and
creates a new one. APPEND adds new entries to the end of an existing $LISrIO EXEC file.
If no $LISTIO EXEC file exists, a new one is created. STAT lists the status (read-only or read/write) of all disk devices
currently assigned.
1. Logical units are assigned and unassigned with the ASSGN command.
For a list of logical units and valid device types, see the
discussion of the ASSGN command.
2. The $LISTIO EXEC contains one record for each logical unit listed. t 1 0 J i V The format is:
&1 &2 SYSxxx {device }
mode [status]
where column Tn .. .I.. on tty vnfJ'v eMS is blank. .... _____ .::1 __ ..:I '- V LU Ul a. il u. a. u u. Macro Reference

LISTIO Depending on the operands specified, the following is displayed for each
unit requested in the LISTIO command: SYSxxx {deVice }
mode [status]
where device is the device type (READER, PRINTER, PUNCH, TERMINAL, TAPn, IGN, or UA). If the device is a disk, the one-character mode letter is
displayed. If the STAT option is specified, the status (RIO or R/i) is
also displayed. DMSLLU003E INVALID OPTION 'option' RC=24 DMSLLU006E NO READ/WRITE lA' DISK ACCESSED RC=36 DMSLLU070E INVALID PARAMETER 'parameter' RC=24 DMSLLU099E eMS/DOS ENVIRONMENT NOT ACTIVE RC=40 DMSLLU105S ERROR Inn' WRITING FILE '$LISTIO EXEC All ON DISK RC=100 Section 2. eMS Commands 119