Update data files

data/common/curl

@@ -0,0 +1,36 @@
+# curl
+
+> Transfers data from or to a server.
+> Supports most protocols, including HTTP, FTP, and POP3.
+
+- Download the contents of an URL to a file:
+
+`curl {{http://example.com}} -o {{filename}}`
+
+- Download a file, saving the output under the filename indicated by the URL:
+
+`curl -O {{http://example.com/filename}}`
+
+- Download a file, following [L]ocation redirects, and automatically [C]ontinuing (resuming) a previous file transfer:
+
+`curl -O -L -C - {{http://example.com/filename}}`
+
+- Send form-encoded data (POST request of type `application/x-www-form-urlencoded`):
+
+`curl -d {{'name=bob'}} {{http://example.com/form}}`
+
+- Send a request with an extra header, using a custom HTTP method:
+
+`curl -H {{'X-My-Header: 123'}} -X {{PUT}} {{http://example.com}}`
+
+- Send data in JSON format, specifying the appropriate content-type header:
+
+`curl -d {{'{"name":"bob"}'}} -H {{'Content-Type: application/json'}} {{http://example.com/users/1234}}`
+
+- Pass a user name and password for server authentication:
+
+`curl -u myusername:mypassword {{http://example.com}}`
+
+- Pass client certificate and key for a resource, skipping certificate validation:
+
+`curl --cert {{client.pem}} --key {{key.pem}} --insecure {{https://example.com}}`