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curl defaults to displaying the output it retrieves to the standard output specified on the system (usually the terminal window). So running the command above, on most systems, displays the HTML contents of www.example.com in plain text on the active terminal window. The -o flag can be used to store the output in a file instead:
Curl attempts to side-step these problems by providing a consistent syntactic and semantic interface at all levels of web content creation: from simple HTML to complex object-oriented programming. Curl is a markup language like HTML—that is, plain text is shown as text; at the same time, Curl includes an object-oriented programming language ...
curl-loader is capable of simulating application behavior of hundreds of thousands of HTTP/HTTPS and FTP/FTPS clients, each with its own source IP-address. In contrast to other tools, curl-loader is using real C-written client protocol stacks, namely, HTTP and FTP stacks of libcurl and TLS/SSL of openSSL, and simulates user behavior with support for login and authentication flavors.
It is often used when uploading a file or when submitting a completed web form. In contrast, the HTTP GET request method retrieves information from the server. As part of a GET request, some data can be passed within the URL's query string, specifying (for example) search terms, date ranges, or other information that defines the query.
HTTP servers often use compression to optimize transmission, for example with Content-Encoding: gzip or Content-Encoding: deflate. If both compression and chunked encoding are enabled, then the content stream is first compressed, then chunked; so the chunk encoding itself is not compressed, and the data in each chunk is compressed individually.
A concise example of how to use server-sent events, on the Mozilla Developer Network. EventSource reference on MDN; Django push: Using Server-Sent Events and WebSocket with Django Django push: Using Server-Sent Events and WebSocket with Django. Server-Sent Events vs WebSockets
jq is typically used at the command line and can be used with other command-line utilities, such as curl.Here is an example showing how the output of a curl command can be piped to a jq filter to determine the category names associated with this Wikipedia page:
The purpose of the delimiting tags is to separate PHP code from non-PHP data (mainly HTML). Although rare in practice, PHP will execute code embedded in any file passed to its interpreter, including binary files such as PDF or JPEG files, or in server log files.