


This article mainly introduces Linux to everyone in detail LinuxThe first article of learning, virtual machine and image file
InstallationConfiguration, has certain reference value, interested friends You can refer to
1. Install virtual machines(This article uses vmware workstation 12 as an example)
1. Download all virtual machines on the Internet.
2. Find the downloaded file and install it
3. Go to the next step
4. The next step is to choose the installation directory. Of course, if your computer’s C drive is large enough, you can install it on the C drive, but it is recommended to install it on a non-system drive to avoid affecting the computer. Running speed. After selecting, click Next.
5. After the installation is completed, you need to enter the secret key to register, otherwise you can only use the 30-day secret key: 5A02H -AU243-TZJ49-GTC7K-3C61N
2. Install the virtual image file1. Find the downloaded linux image file. If not, download one yourself
2. Double-click to open the virtual machine
3.Select the image file
4. Enter the user name and login password
5. Select the installation path
6. Definition Disk size, generally 20g is suitable
7. Click Next to complete.
3. After the installation is complete, you may encounter the following problem when starting the virtual machineSolution:
1. Restart the computer
2. Enter the bios. Depending on the motherboard model, the shortcut keys are different (usually del or esc)
3. After entering the bios, Turn on the virtual service (default is off) 4.F10 (Save and
Exit###bios system)###The above is the detailed content of Linux Learning Part 1: Detailed Explanation of Installation and Configuration of Virtual Machines and Image Files (Pictures and Text). For more information, please follow other related articles on the PHP Chinese website!

The five core components of the Linux operating system are: 1. Kernel, 2. System libraries, 3. System tools, 4. System services, 5. File system. These components work together to ensure the stable and efficient operation of the system, and together form a powerful and flexible operating system.

The five core elements of Linux are: 1. Kernel, 2. Command line interface, 3. File system, 4. Package management, 5. Community and open source. Together, these elements define the nature and functionality of Linux.

Linux user management and security can be achieved through the following steps: 1. Create users and groups, using commands such as sudouseradd-m-gdevelopers-s/bin/bashjohn. 2. Bulkly create users and set password policies, using the for loop and chpasswd commands. 3. Check and fix common errors, home directory and shell settings. 4. Implement best practices such as strong cryptographic policies, regular audits and the principle of minimum authority. 5. Optimize performance, use sudo and adjust PAM module configuration. Through these methods, users can be effectively managed and system security can be improved.

The core operations of Linux file system and process management include file system management and process control. 1) File system operations include creating, deleting, copying and moving files or directories, using commands such as mkdir, rmdir, cp and mv. 2) Process management involves starting, monitoring and killing processes, using commands such as ./my_script.sh&, top and kill.

Shell scripts are powerful tools for automated execution of commands in Linux systems. 1) The shell script executes commands line by line through the interpreter to process variable substitution and conditional judgment. 2) The basic usage includes backup operations, such as using the tar command to back up the directory. 3) Advanced usage involves the use of functions and case statements to manage services. 4) Debugging skills include using set-x to enable debugging mode and set-e to exit when the command fails. 5) Performance optimization is recommended to avoid subshells, use arrays and optimization loops.

Linux is a Unix-based multi-user, multi-tasking operating system that emphasizes simplicity, modularity and openness. Its core functions include: file system: organized in a tree structure, supports multiple file systems such as ext4, XFS, Btrfs, and use df-T to view file system types. Process management: View the process through the ps command, manage the process using PID, involving priority settings and signal processing. Network configuration: Flexible setting of IP addresses and managing network services, and use sudoipaddradd to configure IP. These features are applied in real-life operations through basic commands and advanced script automation, improving efficiency and reducing errors.

The methods to enter Linux maintenance mode include: 1. Edit the GRUB configuration file, add "single" or "1" parameters and update the GRUB configuration; 2. Edit the startup parameters in the GRUB menu, add "single" or "1". Exit maintenance mode only requires restarting the system. With these steps, you can quickly enter maintenance mode when needed and exit safely, ensuring system stability and security.

The core components of Linux include kernel, shell, file system, process management and memory management. 1) Kernel management system resources, 2) shell provides user interaction interface, 3) file system supports multiple formats, 4) Process management is implemented through system calls such as fork, and 5) memory management uses virtual memory technology.


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