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- What are the shell commands in linux
- The shell command in Linux is a command interpreter for users to interact with the operating system kernel. It receives commands entered by the user and passes them to the operating system for execution. Common Linux Shell commands are: 1. cd, used to change the current working directory. ; 2. ls, used to list files and subdirectories in the current directory; 3. pwd, used to display the path of the current working directory; 4. mkdir, used to create a new directory; 5. rm, used to delete files and Directory; 6. cp, used to copy files and directories.
- Linux Operation and Maintenance 3960 2023-07-24 13:39:38
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- What is FTP in linux
- FTP is a standard network protocol used to transfer files between computers, allowing users to download files from a remote host to a local computer. In Linux, there are multiple FTP server software to choose from: 1. vsftpd, light A large-scale and highly secure FTP server; 2. ProFTPD, a highly configurable FTP server that provides flexible permission control and other extended functions; 3. Pure-FTPd, a lightweight, simple and secure FTP server with many features Good performance and scalability.
- Linux Operation and Maintenance 2031 2023-07-24 13:39:30
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- What is the format of the linux task schedule string?
- The Linux task schedule string is "crontab", and the format is "* * * * * command": 1. The first * represents the hour; 2. The second * represents the day of the week; 3. The third * Represents the day of the month; 4. The fourth * represents the month; 5. command represents the command/script.
- Linux Operation and Maintenance 2084 2023-07-24 13:39:24
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- What is the command to view all processes in linux
- The command to view all processes in Linux is the "ps" command, the abbreviation of "Process Status". Related common commands are: 1. "ps -ef", which displays detailed information of all processes; 2. "ps -e/-- everyone", displays all process information for each user; 3. "ps -u username", displays the process information of the specified user; 4. "ps -C command", displays the process information of the specified command name.
- Linux Operation and Maintenance 6065 2023-07-24 13:39:19
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- What does vps in linux mean?
- The meaning of VPS in Linux is a virtual server formed by virtualizing a physical server. Each VPS is isolated from each other and has an independent operating environment and resources. Its functions and uses are: 1. Used to host websites and provide independent resources and environment; 2. Carry out application development, debugging and testing; 3. Upload important data to the VPS to provide backup and remote storage functions; 4. Provide an independent environment for testing, deployment and management of various virtualization technologies and containers.
- Linux Operation and Maintenance 1791 2023-07-24 13:39:13
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- What is the use of ftp service in linux
- In Linux, FTP is a protocol used for file transfer between computers. The uses of the FTP service are: 1. Through the FTP server, users can share files between different computers; 2. Connect to the website server through FTP , can perform website maintenance, updates and other operations; 3. FTP service can be used for remote backup, uploading important files or data to the FTP server as backup storage; 4. Provide virtual hosting services through FTP.
- Linux Operation and Maintenance 2049 2023-07-24 13:39:04
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- What does forward mean in linux
- In Linux, "forward" refers to the process of transferring network data packets between different network interfaces. The enabling methods are: 1. Run sysctl -w net.ipv4.ip_forward=1 to temporarily enable the forwarding function of IPv4 data packets; 2. , edit the "/etc/sysctl.co" file, add and save "net.ipv4.ip_forward =1" at the end of the file, and then use the "sysctl -p" command to reload the configuration file to enable permanent activation.
- Linux Operation and Maintenance 2731 2023-07-24 13:35:14
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- How to check how many network cards there are in Linux
- The method to check the number of network cards in Linux is: 1. Run the ifconfig command to view all network interfaces and related information in the current system; 2. Use the "ip addr" command to list all network interfaces in the system and their detailed information; 3. . Use the "netstat -" command to view the network interface list in the system; 4. Use the "lspci | grep -i ethern" command to filter out the network card device information.
- Linux Operation and Maintenance 5855 2023-07-24 13:35:17
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- How many bytes are there in mysql in linux?
- The number of bytes occupied by mysql fields in Linux depends on factors such as field type, field length, and character set encoding used. Common ones are: 1. CHAR, which occupies 0 to 255 bytes; 2. VARCHAR, which occupies 0 to 65535 words. Section; 3. TEXT, occupies 0 to 65535 bytes; 4. INT, occupies 4 bytes; 5. BIGINT, occupies 8 bytes; 6. FLOAT, occupies 4 bytes; 7. DOUBLE, occupies 8 bytes.
- Linux Operation and Maintenance 1078 2023-07-24 13:35:21
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- There are several timings in linux
- There are four common timings in Linux: 1. Hardware timer, which is provided by the computer's clock source and managed by the kernel driver; 2. Timer interrupt, through which the kernel can implement periodic timing operations; 3. Software timer , timing operations implemented through programming; 4. Timing task scheduling service, Linux provides cron and its related tools for regularly executing specific commands or scripts.
- Linux Operation and Maintenance 2232 2023-07-24 13:35:25
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- What file is svn in linux?
- In Linux, SVN is a version control system used to manage and track changes in files and directories. The following are some of the main files and directories used by SVN in Linux: 1. .svn directory, which contains version control-related files and subdirectories; 2. entries file, which contains information about files and subdirectories in the current directory; 3. format file, used to indicate the format version of the SVN warehouse; 4. conf directory, which stores files related to SVN configuration.
- Linux Operation and Maintenance 1530 2023-07-24 13:35:30
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- What is the newline character in linux?
- In Linux, line breaks are usually represented by LF and "Line Feed". The ASCII code is 10. The usage method is: 1. Manually enter the "Enter" key in the text editor and an LF line break will be inserted; 2. In In command line tools or programming languages, use the escape character ""; 3. In shell scripts, use the "-e" command to output the newline character.
- Linux Operation and Maintenance 5695 2023-07-24 13:35:36
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- what is peerdns in linux
- peerdns in Linux is a network interface configuration option: 1. When set to yes, the system will use the DNS server obtained through DHCP to resolve domain names; 2. When set to no, the system will use a DNS server configured in other ways or configured manually. DNS server to resolve domain names.
- Linux Operation and Maintenance 2650 2023-07-24 13:35:42
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- Is there virtual machine software on linux?
- There are virtual machine software on Linux, the common ones are: 1. VirtualBox, which is easy to install and use; 2. VMware Workstation, which has rich functions and performance optimization; 3. KVM, which converts the Linux kernel into a virtual machine monitor and provides high-performance Virtualization environment; 4. QEMU, which can be used for virtualization and simulation; 5. Docker, which can create and manage containers on Linux, providing the ability to quickly deploy and expand applications.
- Linux Operation and Maintenance 2031 2023-07-24 13:35:48
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- Is there a linux version of python?
- Python has a Linux version. The installation and running steps are: 1. Check whether Python has been installed on the system; 2. If it is not installed, use the package manager to install it; 3. After the installation is completed, execute the "python --version" command to confirm whether Python is installed. Successfully installed; 4. In the terminal, you can use the "python /path/to/your_script.py" command to run the Python script file.
- Linux Operation and Maintenance 2359 2023-07-24 13:35:54
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