If you are started learning Linux or any Linux distros (such as Ubuntu,Fedora etc) here is a list of top ten Linux commands for beginners.
grep command is used to search a string or word in a file. It searches for given arguments by users and return the matching lines.
How to set cookies for multiple subdomains. In this tutorial, I am going to explain how to set and read a cookie from multiple subdomains.
HTTP is a stateless protocol. Stateless means client request a resource, a server respond to that request remembering the request later. So how website knows whether you are a unique user or you have visited previously. How they remember your previous browsing history, language preference etc.