SAC Command Reference Manual

ECHO

SUMMARY

Controls echoing of input and output to the terminal.

SYNTAX

ECHO ON|OFF list

where list is one or more of the following:

ERRORS
WARNINGS
OUTPUT
COMMANDS
MACROS
PROCESSED

INPUT

ON:Turn on echoing of the items in the list that follows.
OFF:Turn off echoing of the items in the list that follows.
ERRORS:Error messages generated during the execution of a command.
WARNINGS:Warning messages generated during the execution of a command.
OUTPUT:Output messages generated during the execution of a command.
COMMANDS:Raw commands as they were typed at the terminal.
MACROS:Raw commands as they appears in a macro file.
PROCESSED:Processed commands originating from the terminal or a macro file. A processed command is one where all macro arguments, blackboard variables, header variables, and inline functions have been processed (evaluated) and substituted into the raw command.

DEFAULT VALUES

ECHO ON ERRORS WARNINGS OUTPUT OFF COMMANDS MACROS PROCESSED

DESCRIPTION

This commands lets you control which categories of the SAC input and output stream is to be echoed to the terminal or screen. There are three categories of output: error messages, warning messages, and output messages. There are three categories of input: commands typed at the terminal, commands executed from a macro, and "processed" commands. A processed command is one in which all macro arguments, blackboard variables, header variables, and inline functions have been evaluated. You can control the echoing of these categories individually. When you type a command at your terminal, the operating system normally echos each character. Thus the commands echoing option is of limited use for interactive sessions. The macro and processed options are useful when debugging a macro.

LATEST REVISION

April 21, 1989 (Version 10.4c)