12 BigIron RX Series Configuration Guide53-1001810-01Searching and filtering output1To display lines containing only a specified search string (similar to the include option for showcommands) press the plus sign key ( + ) at the --More-- prompt and then enter the search string.The filtered results are displayed.To display lines that do not contain a specified search string (similar to the exclude option for showcommands) press the minus sign key ( - ) at the --More-- prompt and then enter the search string.The filtered results are displayed.As with the commands for filtering output from show commands, the search string is a regularexpression consisting of a single character or string of characters. You can use special charactersto construct complex regular expressions. Refer to “Using special characters in regularexpressions” on page 12 for information on special characters used with regular expressions.Using special characters in regular expressionsYou 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 theoutput against the search string. These special characters are listed in the following table.TABLE 27 Special characters for regular expressionsCharacter 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*+ The plus sign matches on one or more sequential instances of a pattern.For example, the following regular expression matches output that contains "de", followed by asequence of “g”s, such as “deg”, “degg”, “deggg”, and so on:deg+--More--, next page: Space, next line: Return key, quit: Control-c+telnetfiltering...telnet Telnet by name or IP address--More--, next page: Space, next line: Return key, quit: Control-c-telnetfiltering...sync-standby Sync active flash (pri/sec/mon/startup config/lp images)to standby if differentterminal Change terminal settingstraceroute TraceRoute to IP nodeundelete Recover deleted filewhois WHOIS lookupwrite Write running configuration to flash or terminal