DevOps Journey - Day 2

Introduction of Linux?

• What is Linux?

  Linux belongs to the Unix family & it is a free and open-source Operating System that was developed in 1991.

• What is the Linux Filesystem hierarchy?

  Linux Filesystem hierarchy describes directory structure and its content Linux and Linux flavor operating systems

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• • / - The base of the Linux directory is the root.

    * /root - is the home directory for the root user(superuser).

    * /bin - Represents system binaries.

    * /dev - Represents device files.

    * /var - Represents variable files that contain system log files, contain database and package files, temporary files and contain emails.

    * /mnt - Mount directory is used to mount a temporary file system.

    * /usr - Contains applications and files used by users.

    * /etc - Contains all configuration files of the server.

    * /boot - Contains boot loader file.

    * /opt - Directory used for installing the application software from third-party vendors that are not available in Linux distribution.

    * /home - Contains secondary user home directory.

    * /tmp - contains temporary files created by the user & system.

• What is Linux Architecture?

  Linux Architecture contains hardware, Kernal, Shell, and Applications.

  

  • TASKS OF DAY-2

  • Task-1 - Command to check your present working directory.

    Answer - pwd

  • Task-2 - Command to List all the files or directories including hidden files.

    Answer - ls -a

  • Task-3 - Command to create a nested directory A/B/C/D/E

    Answer - mkdir -p A/B/C/D/E