The Global Directory Editor (GDE) is a GT.M utility program that creates and maintains global directories. GDE provides commands for operating on the global directory. See Chapter 4: “Global Directory Editor” for more information.

MUPIP (M Peripheral Interchange Program) is the GT.M utility program for general database operations, GT.M Journaling, Multi-site Database Replication, and some non-database operations. See Chapter 5: “General Database Management” for more information.

The M Lock Utility (LKE) is the GT.M utility program that examines and modifies the lock space where GT.M maintains the current M LOCK state. LKE can monitor the locking mechanism and remove locks. See Chapter 8: “M Lock Utility (LKE)” for more information.

The Database Structure Editor (DSE) is the GT.M utility program to examine and alter the internal database structures. DSE edits GT.M Database Structure (GDS) files. It provides an extensive database "patch" facility (including block integrity checks), searches for block numbers and nodes, and provides symbolic examination and manipulation facilities. See Chapter 10: “Database Structure Editor” for more information.

Each utility program has its own set of commands. Qualifiers are used as arguments for a command. A qualifier is always prefixed with a hypen (-). Some qualifier allow assigning values with an equal (=) sign where as some allow the use of sub-qualifiers as their arguments. If you specify the same qualifier more than once, MUPIP, DSE, and LKE acts upon the qualifier that appears latest. However, you cannot specify qualifiers that have sub-qualifiers more than once. With GDE, specifying the same qualifier more than once produces an error.