Page of GC20-1819-2 As Updated April 27, 1981 by TNL SN25-0828 For 5748-XEl As soon as the command name is found, the search stops and the
command is executed. The search order is:
1. EXEC file on any currently accessed disk. CMS uses the standard
search order (A through Z.)
2. Valid abbreviation or truncation for an EXEC file on any currently
accessed disk, according to current SYNONYM file definitions in
effect.
3. A command that has already been loaded into the transient area.
The transient area commands are:
ACCESS
ASSGN COMPARE DISK
DLBL
FILEDEF
GENDIRT GLOBAL HELP
LISTFILE MODMAP OPTION PRINT PUNCH QUERY READCARD
RELEASE RENAME SET SVCTRACE SYNONYM TAPE TYPE 4. A nucleus-resident command. The nucleus-resident CMS commands are:
CP DEBUG ERASE
FETCH GENMOD INCLUDE LOAD LOADMOD START
STATE STATEW 5. Search for a file with filetype MODULE on any currently accessed
disk.
6. Valid abbreviation or truncation for nucleus-resident or transient
area command module.
7. Valid abbreviation or truncation for disk-resident command.
For example, if you create a command module that has the same name as
a CMS nucleus-resident command, your command module cannot be executed,
since CMS locates the nucleus-resident command first, and executes it. When a user-written command has the same name as a CMS command module
abbreviation, certain error messages may indicate the CMS command name,
rather than the proqram name.
Fiqure 4 shows more details of the command search order.
58 IBM VM/370 CMS User's Guide

CMS
EXEC Sir b r
TRANSIENT OR NUCLEUS RESIDENT COir b 1'--1 - I I I CMS MODULE Sl F 'CP' Fiquce Page of GC20-1819-2 As Updated April 1, 1981 by TNt GN25-0826
EXECUTE
THE FILE
AND RETURN CONTROL TO CMS.
EXPAND THE
NAME TO THE
FULL REAL
NAME, EXECUTE
IT, AND RETURN CONTROL TO CMS.
EXECUTE
THE FILE
AND RETURN CONTROL TO CMS.
EXECUTE THE
FILE AND
RETURN. CONTROL TOCMS EXECUTE THE
FILE AND
RETURN CONTROL TOCMS. EXPAND THE
NAME TO THE FULL REAL NAME, EXECUTE IT, AND RETURN CONTROL TO CMS. EXECUTE THE COMMAND AND RETURN CONTROL TO eMS. How CMS Searches for the Command to Execute
section 4. The eftS File System 59