Using commands in z/OS

As described in the WebSphere MQ for z/OS Concepts and Planning Guide, commands can be issued from:

However, not all commands can be issued from all these sources. Commands can be classified according to whether they can be issued from:

1
CSQINP1
2
CSQINP2
C
The z/OS console
R
The command server and command queue, by means of CSQUTIL, CSQINPX, or applications

Within the command descriptions that follow, these sources are identified by the use of the characters 1, 2, C, and R respectively in the z/OS column of the table at the top of each command description.