There are no other files named exec-messages.hlp in the archive.
The TOPS-20 Command Processor, or EXEC, displays messages in response
to errors or other conditions that arise when using the TOPS-20
Command Language. There are three kinds of EXEC messages: error,
warning, and information.
Error messages begin with a question mark (?). An error message
indicates that a failure has occurred and execution of the command or
program has stopped. If, for example, you type the wrong password in
a LOGIN or CONNECT command, you receive the message:
and the command is not executed.
Warning messages begin with percent sign (%). A warning message also
indicates that a failure has occurred, but execution of the command or
program usually continues. For example, suppose you type the command
DIRECTORY *.PAS, *.REL
to list all the files with the extensions .PAS and .REL, and, your
connected directory does not contain any .REL files. The EXEC lists
all the files with the .PAS extensions and then prints the warning
%No such file type *.REL.
The third type of message you can get from the EXEC (and sometimes
from the system) is an information message. Information messages are
enclosed in square brackets [ ] and inform you about the status of the
system or the result of an EXEC command. For example, the message
indicates that a temporary pause in service has ended. The message
[n pages freed]
indicates that your EXPUNGE command freed n disk pages. Usually,
information messages require no response from you.
When you need more information than is provided by an EXEC message,
see the EXEC Message Manual. This manual contains detailed
descriptions of all EXEC messages, plus actions to take for correcting