Use the ! (exclamation mark) to indicate that the content that follows it are not a part of the command and will be ignored. Use ! (Exclamation Mark) to add comments to your command.
The following is an example of comments added to a command:
do dir ! execute the directory command.
The first example shows the use of the ! symbol to introduce a blank line for better visibility and grouping of commands within the output of a command. The second example shows how the mark is used to indicate empty lines within the output of the show running-config command.
configure terminal
!
crypto ca trustpoint t1 ! configure a trustpoint
keypair k1 ! configure the keypair
!
do show running-config crypto ! view the configuration
SLX(config-management-heartbeat-manage) # no action SLX(config-management-heartbeat-manage)# do show running-config management-heartbeat manager management-heartbeat manager enable threshold-timer 1 action no-action ! SLX(config-management-heartbeat-manage)#