An overview of command completion, keystrokes and symbols and nodes.
To save keystrokes, the system accepts unambiguous command prefixes in place of the full command. For example, typing sh configu in operational mode is equivalent to typing show configuration.
You can also have the system automatically complete a command syntax by entering or pressing any of the following at the command prompt.
|Enter or press this:||To display this:|
Automatic completion of a command.
(Note that the space following a command or keyword counts as a token.)
? or <Alt>-?
The set of possible tokens. Pressing ? a second time displays command help for each possible token.
Note: To enter a literal question mark, first enter <Ctrl>+v, then the question mark.
The following example shows how to find all available commands.
The following example shows how to request command completion for the sh entered character string. In this example, the command to be completed is unambiguous.
vyatta@R1:~$ sh<Tab> vyatta@R1:~$ show
The following example shows how to request command completion for the s entered character string. In this case, more than one command can complete the entry and the system lists all valid completions.
vyatta@R1:~$:s<Tab> set show
Note that neither the <Tab> key nor the <Alt>+? key combination provides a help function when enclosed in double quotation marks. When used within double quotation marks, the <Tab> key generates a tab character and the <Alt>+? key combination generates a question mark (?) character.
In configuration mode, the following symbols are displayed next to nodes in their completion help text to indicate the node type.
Tag node (multiple nonleaf)
The following example shows the node symbols next to possible completions for the interfaces dataplane command.
vyatta@vyatta:~$ configure  vyatta@vyatta# set interfaces dataplane dp0p0p1 <Tab> Possible Completions: <Enter> Execute the current command + address IP address > bridge-group Add this interface to a bridge group description Description > dhcpv6-options DHCPv6 options disable Disable interface disable-link-detect Ignore link state changes > firewall Firewall options > flow-monitoring Flow-Monitoring configuration for interface > ip <No help text available> > ipv6 IPv6 parameters log_martians Enable the logging of bogus packets mac Media Access Control (MAC) address mtu Maximum Transmission Unit (MTU) > policy PBR Options qos-policy Qos policy for interface sflow Enable/Disable sflow for interface +> vif Virtual Interface (VIF) ID > vrrp Virtual Router Redundancy Protocol (VRRP) > xconnect Specify the parameters for cross-connect