question-mark

?

Get context sensitive. More information: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fundamentals/configuration/15mt/fundamentals-15-mt-book/cf-cli-basics.html#GUID-223128D2-FB6D-418D-86C6-06D1D0DA51B3.

  • Get available commands:

?

  • Get storages that are listable:

dir ?

  • Show what IP information is viewable:

ip show ?

cisco-ios

line Manage lines.
enable Enter privileged execution mode.
clock Set the system clock.
reload Control reboot behavior.
write Write data to memory.
transport Manage line transport protocols.
configure Enter configuration mode.
show Show various system information.
question-mark Get context sensitive.
ip Manage IP configurations.
erase Delete preset things.
username Manage users.
login Manage console and virtual line authentication.
crypto Manage cryptography.
dir List files.
delete Delete individual files.
interface Manage interfaces.