Brocade Communications Systems 6650 manual Using special characters in regular expressions

1	Using slot number, and port number with CLI commands
	To display lines containing only a specified search string (similar to the include option for show
	commands) press the plus sign key ( + ) at the --More-- prompt and then enter the search string.
	--More--, next page: Space, next line: Return key, quit: Control-c
	+telnet
	The filtered results are displayed.
	filtering...	Telnet by name or IP address
	telnet
	To display lines that do not contain a specified search string (similar to the exclude option for show
	commands) press the minus sign key ( - ) at the --More-- prompt and then enter the search string.
	--More--, next page: Space, next line: Return key, quit: Control-c
	-telnet
	The filtered results are displayed.
	filtering...	temperature sensor commands
	temperature
	terminal	display syslog
	traceroute	TraceRoute to IP node
	undebug	Disable debugging functions (see also 'debug')
	undelete	Undelete flash card files
	whois	WHOIS lookup
	write	Write running configuration to flash or terminal

As with the commands for filtering output from show commands, the search string is a regular expression consisting of a single character or string of characters. You can use special characters to construct complex regular expressions. See the next section for information on special characters used with regular expressions.

Using special characters in regular expressions

You use a regular expression to specify a single character or multiple characters as a search string. In addition, you can include special characters that influence the way the software matches the output against the search string. These special characters are listed in the following table.

TABLE 3	Special characters for regular expressions
Character	Operation
.	The period matches on any single character, including a blank space.
	For example, the following regular expression matches “aaz”, “abz”, “acz”, and so on, but not just
	“az”:
	a.z

*The asterisk matches on zero or more sequential instances of a pattern.

For example, the following regular expression matches output that contains the string “abc”, followed by zero or more Xs:

abcX*

8	Brocade ICX 6650 Administration Guide
	53-1002600-01