Linux has great features through which you can easily hide your files and directories. To hide files and directories through terminal , we have to just append a dot [.] at the start of the name as follows using the mv command.
Backup refers to copying of files or database of a computer data so it may be used to restore original after data loss event. we make backup of computer data so that if the computer will corrupt , we can restore data from backup files.
Booting is the process or set of operation that loads and hence start the operating system, starting from the point when user switches on the power button. A boot loader is a computer program which load operating system and other software .
Linux is free and open source software operating system. Operating system is a program which is used to run and manage electronic parts of computer system allow to run application program. We can change the source code of Linux operating system according to our requirement.
Swap memory in linux is used when the amount of physical memory (RAM) is full. If the system needs more memory resources and RAM is full, then inactive pages in memory are moved to swap space. swap spaces are located on hard drives.
The main function of yum is that it allows automatic updates, package and dependency management on RPM – based distributions. It works with software repositories, which can be accessed locally or over a network.