23.2 Describing the format of messages (messages for commands and programs)
The format for describing the messages for commands and programs in this chapter is as follows.
-
Message text
Message description
Error level: Level of the error output in the error log
(S) System processing
(O) User action
Note that Error level and (O) might not be described for some messages.
The description of each item is as follows:
- Message text
-
The messages might contain the time and error level followed by the Message text, or only the Message text. The format is as follows:
- Format 1
[Time] [Error level] Message text
- Format 2
Message text
- Message description
-
This indicates the supplementary description of a message such as the cause of reporting the message.
- Error level
-
This indicates the error level specified in the LogLevel directive.
The following error levels can be output:
-
emerg
-
alert
-
crit
-
error
-
warn
-
notice
-
info
-
No level
No level means that the message has no level setting and only the message text is output.
-
- (S)
-
This indicates the main processing that is executed after the system outputs the message.
- (O)
-
This indicates the action to be taken by the user when a message is output.