The meaning of RewriteCond and RewriteRule in htaccess syntax.

In the .htaccess file, RewriteCond and RewriteRule are directives used to configure URL rewriting rules.

1. The RewriteCond directive is used to define one or more conditions that must be met in order for the following RewriteRule directive to be executed. Each condition consists of a test string and a pattern, and if the test string matches the pattern, the condition is satisfied.
2. The RewriteRule is used to define a URL rewriting rule which specifies that URLs matching a specific pattern will be rewritten to a designated target URL. Each rule consists of a pattern and a replacement string. If the requested URL matches the pattern, it will be rewritten to the specified target URL.

In general, RewriteCond is used to add extra conditions to meet specific rewriting requirements, while RewriteRule is used for the actual URL rewriting operation.