Cisco ME 3800X Command Reference Manual page 567

Appendix A Cisco ME 3800X and ME 3600X Switch Boot Loader Commands
Usage Guidelines Under normal circumstances, it is not necessary to alter the setting of the environmental variables.
The MANUAL_BOOT environment variable can also be reset by using the no boot manual global
configuration command.
The BOOT environment variable can also be reset by using the no boot system global configuration
command.
The ENABLE_BREAK environment variable can also be reset by using the no boot enable-break
global configuration command.
The HELPER environment variable can also be reset by using the no boot helper global configuration
command.
The CONFIG_FILE environment variable can also be reset by using the no boot config-file global
configuration command.
The HELPER_CONFIG_FILE environment variable can also be reset by using the no boot
helper-config-file global configuration command.
Examples This example shows how to reset the prompt string to its previous setting:
Switch: unset PS1
Switch:
Related Commands Command
set
OL-28238-01
Description
Sets or displays environment variables.
Cisco ME 3800X and ME 3600X Switch Command Reference
unset
A-33