Code Snippet to traverse a folder and calculate hash of each file. Seven type of hashing algorithm are available including MD5 and SHA. It can also traverse recursively with Recurse switch.

cURL Timeout controls for how many seconds or milliseconds a connection should be made available for transfer or data.

This code snippet will get the size of the remote file without actually downloading it. It is important to remember that file size is present in the content-length field of the HTTP response header.

The HTTP 401 Unauthorized response status code indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource. In order to access the resource client must provide a credential to access it.

There are many HTTP methods available to clients to access data and resources from server. Most used HTTP methods are GET and POST. GET request are simple and request is part for URL. It supports up to 4 KB of data sent as part of URL to the server.