CML operation

• Virtual terminals (VT) in Linux are consoles, or command line terminals that use the connected monitor and keyboard.
• Different Linux distributions start and stop the graphical desktop in different ways.
• A terminal emulator program on the graphical desktop works by emulating a terminal within a window on the desktop.
• The Linux system allows you to either log in via text terminal or remotely via the console.
• When typing your password, nothing is printed to the terminal, not even a generic symbol to indicate that you typed.
• The preferred method to shut down or reboot the system is to use the shutdown command.
• There are two types of pathnames: absolute and relative.
• An absolute pathname begins with the root directory and follows the tree, branch by branch, until it reaches the desired directory or file.

• A relative pathname starts from the present working directory.
• Using hard and soft (symbolic) links is extremely useful in Linux.
• cd remembers where you were last, and lets you get back there with cd -.
• locate performs a database search to find all file names that match a given pattern.
• find locates files recursively from a given directory or set of directories.
• find is able to run commands on the files that it lists, when used with the -exec option.
• touch is used to set the access, change, and edit times of files as well as to create empty files.
• The Advanced Packaging Tool (apt) package management system is used to manage installed software on Debian-based systems.
• You can use the Yellowdog Updater Modified (yum) open-source command-line package-management utility forRPM-compatible Linux operating systems.
• The zypper package management system is based on RPM and used for OpenSUSE.