_echo - UDM Built-in Variable

The _echo built-in variable specifies whether or not a command is echoed prior to processing. It can have a value of either yes or no:

• If the value is yes, each UDM command is echoed prior to processing.

• If the value is no, the command is not echoed.

The value of _echo can be set using the set command, as in the following example:

set _echo=yes