Usefull command when working with Cisco devices remotely is to be able to revert config in case when configuration changes. If I know that I will be making changes that may cause me to disconnect and loose access to the device I schedule a reload and when I know that the config is fine I just cancel the reload.
To schedule a reload in 15 minutes:
Cisco# reload in 0:15 Proceed with reload? [confirm] Cisco# *** *** --- SHUTDOWN in 0:15:00 ---
To see how much time have you got left:
Cisco# show reload Reload scheduled for 23:15:47 GMT/BDT Fri Jun 5 2015 (in 12 minutes) by console from ssh (remote 1.2.3.4)
To cancel reload:
cisco#reload cancel cisco# *** *** --- SHUTDOWN ABORTED --- ***
