What is Shell Access in hosting?
Shell Access (sometimes referred to as SSH) allows you to edit your web files and your site structure online through a Unix command-based port. The installation of some scripts and web applications sometimes require shell access, but unless you are an advanced user with some Unix experience, you will probably never need or use SSH…and probably shouldn’t unless you know what you are doing as you risk causing possible damage to your web hosting account.
These days, there are plenty of friendlier interfaces that will accommodate just about any file structure event you need. If you ever do need to access your web server through the shell, you will require the use of a software interface that can connect to that port. The most popular is a free open source application most advanced users use to manage their shell access. It is a program called “Putty” and can be found quickly with any Google search in many places on the web.