Cisco Catalyst 3560X-24P Command Reference Manual page 1007

Appendix A Catalyst 3750-X and 3560-X Switch Boot Loader Commands
Usage Guidelines Under normal circumstances, it is not necessary to alter the setting of the environment 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-21522-02
Description
Sets or displays environment variables.
Catalyst 3750-X and 3560-X Switch Command Reference
unset
A-29