SLMOD = Search List Modification Utility

Written by Bob Boyd.

SLMOD is a utility for manipulating search list logical names in a way that
mimics the behavior of the DEFINE command in most ways.  

The program will create a search list logical name, insert additional
elements at any specified position in the list, remove specific elements
from the list, and if the resulting list is empty, it will delete the
logical name.  If the logical name to be updated is in a shared logical
name table the program will use the lock manager to coordinate access to
the table and logical name.  Note:  there apparently is no other interlock
mechanism on logical names, so this will not prevent a DEFINE command from
overwriting a logical name at the same time that SLMOD is working on it.

While it is possible to have the image installed with privileges, 
I suggest that you not give it any privileges except for SYSLCK.
There is currently no code in the program to minimize its privileges
to the bare necessity of SYSLCK.  Perhaps you would like to put in 
the time to deal with this?  If so, please let me know what you do 
with it.  The only time the privilege is actually needed is in 
routine LOCK_IT, and (maybe) UNLOCK_IT.  The rest of the time, only
the process privileges should be on.

In order to enable SLMOD to provide system wide interlocks on logical
search list updates, it's recommended that you install the image with
SYSLCK privilege, or only use it from usernames with SYSLCK privilege
enabled.  If the image or the user is enabled for SYSLCK, the image will
use the system wide lock flag when taking out the locks before doing any 
translating and updating.  The locks are released after the work is
completed.

The program concept was developed by Bob Boyd while working at the Harris
Microelectronics Center.  The program was completed while working for
Unisys at the US EPA National Data Processing Division.

Included are:  executable compiled & linked on OpenVMS V5.5-2, source files,
build procedure, specification text, help text, a verification/test 
procedure, and object code.

You can contact Bob via Internet at rlboyd@rock.concert.net, voice
at (919)554-0043.