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About syntax at apache This indicates the format of the directive as it would appear in a configuration file. This syntax is extremely directive-specific, and is described in detail in the directive's definition. Generally, the directive name is followed by a series of one or more space-separated arguments. If an argument contains a space, the argument must be enclosed in double quotes. Optional arguments are enclosed in square brackets. Where an argument can take on more than one possible value, the possible values are separated by vertical bars "|". Literal text is presented in the default font, while argument-types for which substitution is necessary are emphasized. Directives which can take a variable number of arguments will end in "..." indicating that the last argument is repeated. Directives use a great number of different argument types. A few common ones are defined below. URL A complete Uniform Resource Locator including a scheme, hostname, and optional pathname as in http://www.example.com/path/to/file.html URL-path The part of a url which follows the scheme and hostname as in /path/to/file.html. The url-path represents a web-view of a resource, as opposed to a file-system view. file-path The path to a file in the local file-system beginning with the root directory as in /usr/local/apache/htdocs/path/to/file.html. Unless otherwise specified, a file-path which does not begin with a slash will be treated as relative to the ServerRoot. directory-path The path to a directory in the local file-system beginning with the root directory as in /usr/local/apache/htdocs/path/to/. filename The name of a file with no accompanying path information as in file.html. regex A regular expression, which is a way of describing a pattern to match in text. The directive definition will specify what the regex is matching against. extension In general, this is the part of the filename which follows the last dot. However, Apache recognizes multiple filename extensions, so if a filename contains more than one dot, each dot-separated part of the filename following the first dot is an extension. For example, the filename file.html.en contains two extensions: .html and .en. For Apache directives, you may specify extensions with or without the leading dot. In addition, extensions are not case sensitive. MIME-type A method of describing the format of a file which consists of a major format type and a minor format type, separated by a slash as in text/html. env-variable The name of an environment variable defined in the Apache configuration process. Note this is not necessarily the same as an operating system environment variable. OTHER ARTICLES |
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