DISPLAY NAMELIST

Use the MQSC command DISPLAY NAMELIST to display the names in a namelist.

Use MQSC commands

For information on how we use MQSC commands, see Performing local administration tasks using MQSC commands.

We can issue this command from sources 2CR. For an explanation of the source symbols, see Sources from which we can issue MQSC commands on z/OS .

• Syntax diagram
• Parameter descriptions for DISPLAY NAMELIST
• Requested parameters

Synonym: DIS NL

DISPLAY NAMELIST

• ¹ Valid only on z/OS when the queue manager is a member of a queue sharing group.
• ² Valid only on z/OS.

Parameter descriptions for DISPLAY NAMELIST

• All namelist definitions
• One or more namelists that match the specified name

( generic-namelist-name )

The name of the namelist definition to be displayed (see Rules for naming IBM MQ objects ). A trailing asterisk (*) matches all namelists with the specified stem followed by zero or more characters. An asterisk (*) on its own specifies all namelists.

WHERE

Specify a filter condition to display only those namelists that satisfy the selection criterion of the filter condition. The filter condition is in three parts: filter-keyword, operator, and filter-value:

filter-keyword

Almost any parameter that can be used to display attributes for this DISPLAY command. However, we cannot use the CMDSCOPE or QSGDISP parameters as filter keywords. We cannot use NLTYPE as a filter keyword if you also use it to select namelists.

operator

This is used to determine whether a namelist satisfies the filter value on the given filter keyword. The operators are:

LT

Less than

GT

Greater than

EQ

Equal to

NE

Not equal to

LE

Less than or equal to

GE

Greater than or equal to

LK

Matches a generic string that you provide as a filter-value

NL

Does not match a generic string that you provide as a filter-value

CT

Contains a specified item. If the filter-keyword is a list, we can use this to display objects the attributes of which contain the specified item.

EX

Does not contain a specified item. If the filter-keyword is a list, we can use this to display objects the attributes of which do not contain the specified item.

CTG

Contains an item which matches a generic string that you provide as a filter-value. If the filter-keyword is a list, we can use this to display objects the attributes of which match the generic string.

EXG

Does not contain any item which matches a generic string that you provide as a filter-value. If the filter-keyword is a list, we can use this to display objects the attributes of which do not match the generic string.

filter-value

The value that the attribute value must be tested against using the operator. Depending on the filter-keyword, this can be:

• An explicit value, that is a valid value for the attribute being tested.

  We can use operators LT, GT, EQ, NE, LE or GE only. However, if the attribute value is one from a possible set of values on a parameter (for example, the value NONE on the NLTYPE parameter), we can only use EQ or NE.

• A generic value. This is a character string (such as the character string you supply for the DESCR parameter) with an asterisk at the end, for example ABC*. The characters must be valid for the attribute we are testing. If the operator is LK, all items where the attribute value begins with the string (ABC in the example) are listed. If the operator is NL, all items where the attribute value does not begin with the string are listed. Only a single trailing wildcard character (asterisk) is permitted.

  We cannot use a generic filter-value for parameters with numeric values or with one of a set of values.

• An item in a list of values. The value can be explicit or, if it is a character value, it can be explicit or generic. If it is explicit, use CT or EX as the operator. For example, if the value DEF is specified with the operator CT, all items where one of the attribute values is DEF are listed. If it is generic, use CTG or EXG as the operator. If ABC* is specified with the operator CTG, all items where one of the attribute values begins with ABC are listed.

ALL

Specify this to display all the parameters. If this parameter is specified, any parameters that are requested specifically have no effect; all the parameters are displayed.

This is the default if we do not specify a generic name, and do not request any specific parameters.

On z/OS this is also the default if you specify a filter condition using the WHERE parameter, but on other platforms only requested attributes are displayed.

CMDSCOPE

This parameter specifies how the command runs when the queue manager is a member of a queue sharing group.

' '

The command runs on the queue manager on which it was entered. This is the default value.

qmgr-name

The command runs on the queue manager you specify, providing the queue manager is active within the queue sharing group.

We can specify a queue manager name, other than the queue manager on which the command was entered, only if we are using a queue sharing group environment and if the command server is enabled.

*

The command runs on the local queue manager and is also passed to every active queue manager in the queue sharing group. The effect of this is the same as entering the command on every queue manager in the queue sharing group.

QSGDISP

Specifies the disposition of the objects for which information is to be displayed. Values are:

LIVE

This is the default value and displays information for objects defined with QSGDISP(QMGR) or QSGDISP(COPY).

ALL

Displays information for objects defined with QSGDISP(QMGR) or QSGDISP(COPY).

If there is a shared queue manager environment, and the command is being executed on the queue manager where it was issued, this option also displays information for objects defined with QSGDISP(GROUP).

If QSGDISP(ALL) is specified in a shared queue manager environment, the command might give duplicated names (with different dispositions).

In a shared queue manager environment, use

DISPLAY NAMELIST(name) CMDSCOPE(*) QSGDISP(ALL)

to list ALL objects matching

name

in the queue sharing group without duplicating those in the shared repository.

COPY

Display information only for objects defined with QSGDISP(COPY).

GROUP

Display information only for objects defined with QSGDISP(GROUP). This is allowed only if there is a shared queue manager environment.

PRIVATE

Display information for objects defined with QSGDISP(QMGR) or QSGDISP(COPY). Note that QSGDISP(PRIVATE) displays the same information as QSGDISP(LIVE).

QMGR

Display information only for objects defined with QSGDISP(QMGR).

QSGDISP displays one of the following values:

QMGR

The object was defined with QSGDISP(QMGR).

GROUP

The object was defined with QSGDISP(GROUP).

COPY

The object was defined with QSGDISP(COPY).

We cannot use QSGDISP as a filter keyword.

NLTYPE

Indicates the type of namelist to be displayed.

This parameter is valid only on z/OS.

ALL

Displays namelists of all types. This is the default.

NONE

Displays namelists of type NONE.

QUEUE or Q

Displays namelists that hold lists of queue names.

CLUSTER

Displays namelists that are associated with clustering.

AUTHINFO

Displays namelists that contain lists of authentication information object names.

Requested parameters

Specify one or more parameters that define the data to be displayed. The parameters can be specified in any order, but do not specify the same parameter more than once.

ALTDATE

The date on which the definition was last altered, in the form yyyy-mm-dd

ALTTIME

The time at which the definition was last altered, in the form hh.mm.ss

DESCR

Description

NAMCOUNT

Number of names in the list

NAMES

List of names

See DEFINE NAMELIST for more information about the individual parameters.