By default, the echo required function (ECHOREQ command) is enabled. This returns a copy of every BTEQ command and Teradata SQL statement to the standard output stream. When using BTEQ interactively, this means that BTEQ redisplays (echoes) everything entered. All entries are displayed twice.
Use the following BTEQ ECHOREQ command to disable the echo required function:
.SET ECHOREQ OFF
The BTEQ ECHOREQ command is not related to the Teradata SQL ECHO statement.