JCL BO JCL BOMoves the active output buffer pointer back by one parameter.
BO
The buffer pointer will move backward until it finds a field mark or the start of the buffer.
To completely clear the buffer, use the RO command. To clear specific parameters, use the MV #n command
| Command | POB Before | POB After |
| BO | ABC^DEF^GHIJK | ABC^DEF^GHIJK |
| ^ | ^ |
| Command | SOB Before | SOB After |
| BO | SAVE-LIST | SAVE-LIST |
| ^ | ^ |
JCL