Three types of messages are output:

1. Messages at normal termination
   If the sorting, merging, selection, or summing terminates normally, these messages are displayed.
   
2. Messages at abnormal termination
   If the sorting, merging, selection, or summing terminates abnormally, these messages are displayed.
   
3. Messages at system error
   If an error by a system call occurs, these messages are displayed.
   

Messages are described in the following format.

---

Message ID

Message text

Message explanation

S: System operation

O: Indicates the user or operator operation.

If any of the following messages are output, contact the customer support center:

KBLS201-E, KBLS203-E, KBLS204-E, KBLS205-E, KBLS206-E, KBLS207-E, KBLS208-E, KBLS212-E

(Description of message ID)

The message ID is shown in the KBLSnnn-x format.

KBLS: Program identification code

nnn: Message number

x: Message types

I: Message when processing ends normally

E: Message when an error occurs

Besides the three types of messages, the following three end codes are used to indicate the status of the end of sorting, merging, selection, or summing. The following table shows the end code types.

Table 7-2 End code types

End status		End code
Normal end		0
Abend	When messages other than KBLS300-E are output	1
	When the KBLS300-E message is output or there is no message of the SORT program	The abend code of the UNIX system is set.