1-19Key FunctionTabPressing Tab after entering part of a keyword enables the fuzzyhelp function.z If finding a unique match, the system substitutes thecomplete keyword for the incomplete one and displays it inthe next line.z When there are several matches, if you repeatedly pressTab, all the keywords starting with the letter that you enterare displayed in cycles.z If there is no match at all, the system does not modify theincomplete keyword and displays it again in the next line.When editing the command line, you can use other shortcut keys (For details, see Table 1-2) besidesthe shortcut keys defined in Table 1-4, or you can define shortcut keys by yourself. (For details, seeConfiguring CLI Hotkeys.)CLI DisplayWith the output information filtering function, you can quickly find the information you are interested in.When there is a lot of information to be output, the system displays the information in multiple screens.Filtering the output informationThe device provides the function to filter the output information. You can specify a regular expression tosearch the information you need.You can use these two methods to filter the output information:z Input the begin, exclude or include keyword plus a regular expression in the CLI to filter theoutput information.z When the system displays the information in multiple screens, use /, - or + plus a regularexpression. / equals the keyword begin, - equals the keyword exclude, and + equals the keywordinclude.The description of the begin, exclude, and include keywords is as follows:z begin: Displays the line that matches the regular expression and all the subsequent lines.z exclude: Displays the lines that do not match the regular expression.z include: Displays only the lines that match the regular expression.A regular expression is a case sensitive string of 1 to 256 characters. It also supports special charactersas shown in Table 1-5.Table 1-5 Special characters in a regular expressionCharacter Meaning Remarks^string Starting sign, string appearsonly at the beginning of a line.For example, regular expression “^user”only matches a string beginning with“user”, not “Auser”.
