Category: Operating System

Disk Cleanup in Windows 10

Disk Cleanup is a utility that is included in the Microsoft Windows 10 and it is designed to free up space on the hard drive. The cleanup process involves searching and...

User and Group IDs In Unix

When you execute a program, you create a process. Four identifiers are assigned to this process upon its creation. These are its real uid, real gid, effective uid, and...

Unix Password File

Most UNIX variants keep information about users in two files, /etc/passwd and /etc/shadow. These files are used by the login program to authenticate users and to set up...

Why Is UNIX Important?

During the past 35 years, the operating system known as UNIX has evolved into a powerful, flexible, and versatile operating system. The different variants of UNIX...