Operation and Maintenance
Linux Operation and Maintenance
Discussion on several commonly used restart methods in Linux
Discussion on several commonly used restart methods in Linux
As an open source operating system, Linux system has the advantages of stability and flexibility. Restarting is a common operation when using a Linux system. This article will discuss several common restart methods in Linux systems, including normal restart, fast restart, forced restart, etc., as well as specific code examples.
1. Normal restart
Normal restart is the most common restart method. The specific steps are as follows:
- Use the
rebootcommand. Restart the operation. Enter the following command in the terminal:
sudo reboot
- The system will prompt you to enter the password for confirmation. After entering the password, the system will start to restart and restart.
2. Quick restart
Quick restart is a restart method without shutting down system services. It is suitable for scenarios where the system needs to be restarted quickly. The specific steps are as follows:
- Use the
systemctlcommand to perform a quick restart operation. Enter the following command in the terminal:
sudo systemctl reboot
- The system will restart immediately, running services will not be shut down, and the restart time will be shorter.
3. Forced restart
Forced restart is a method of restarting in the event of a system emergency. It may cause data loss or system abnormalities and needs to be used with caution. The specific steps are as follows:
- Use the
shutdowncommand to perform a forced restart. Enter the following command in the terminal:
sudo shutdown -r now
- The system will immediately perform a forced restart operation, and data may be lost. It is recommended to save important data in advance and close running programs.
4. Scheduled restart
Scheduled restart is a method of restarting the system at a specific time. It is suitable for scenarios where the system is regularly maintained or planned tasks are performed. The specific steps are as follows:
- Use the
crontabcommand to set up scheduled tasks. Enter the following command in the terminal:
sudo crontab -e
- Edit the scheduled task configuration file and add a restart task in the file, such as restarting the system at 2 a.m. every Sunday:
0 2 * * 0 reboot
- Save the configuration file and exit. The system will restart at 2 a.m. every Sunday.
By learning the above common Linux system restart methods, you can perform system maintenance and management more flexibly. In actual applications, it is necessary to choose the appropriate restart method according to the specific situation, and pay attention to saving important data to avoid unnecessary losses.
The above is the detailed content of Discussion on several commonly used restart methods in Linux. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1386
52
How to use sql datetime
Apr 09, 2025 pm 06:09 PM
The DATETIME data type is used to store high-precision date and time information, ranging from 0001-01-01 00:00:00 to 9999-12-31 23:59:59.99999999, and the syntax is DATETIME(precision), where precision specifies the accuracy after the decimal point (0-7), and the default is 3. It supports sorting, calculation, and time zone conversion functions, but needs to be aware of potential issues when converting precision, range and time zones.
How to create oracle database How to create oracle database
Apr 11, 2025 pm 02:36 PM
To create an Oracle database, the common method is to use the dbca graphical tool. The steps are as follows: 1. Use the dbca tool to set the dbName to specify the database name; 2. Set sysPassword and systemPassword to strong passwords; 3. Set characterSet and nationalCharacterSet to AL32UTF8; 4. Set memorySize and tablespaceSize to adjust according to actual needs; 5. Specify the logFile path. Advanced methods are created manually using SQL commands, but are more complex and prone to errors. Pay attention to password strength, character set selection, tablespace size and memory
How to delete rows that meet certain criteria in SQL
Apr 09, 2025 pm 12:24 PM
Use the DELETE statement to delete data from the database and specify the deletion criteria through the WHERE clause. Example syntax: DELETE FROM table_name WHERE condition; Note: Back up data before performing a DELETE operation, verify statements in the test environment, use the LIMIT clause to limit the number of deleted rows, carefully check the WHERE clause to avoid misdeletion, and use indexes to optimize the deletion efficiency of large tables.
How to add columns in PostgreSQL?
Apr 09, 2025 pm 12:36 PM
PostgreSQL The method to add columns is to use the ALTER TABLE command and consider the following details: Data type: Select the type that is suitable for the new column to store data, such as INT or VARCHAR. Default: Specify the default value of the new column through the DEFAULT keyword, avoiding the value of NULL. Constraints: Add NOT NULL, UNIQUE, or CHECK constraints as needed. Concurrent operations: Use transactions or other concurrency control mechanisms to handle lock conflicts when adding columns.
Can I retrieve the database password in Navicat?
Apr 08, 2025 pm 09:51 PM
Navicat itself does not store the database password, and can only retrieve the encrypted password. Solution: 1. Check the password manager; 2. Check Navicat's "Remember Password" function; 3. Reset the database password; 4. Contact the database administrator.
What are the oracle11g database migration tools?
Apr 11, 2025 pm 03:36 PM
How to choose Oracle 11g migration tool? Determine the migration target and determine the tool requirements. Mainstream tool classification: Oracle's own tools (expdp/impdp) third-party tools (GoldenGate, DataStage) cloud platform services (such as AWS, Azure) to select tools that are suitable for project size and complexity. FAQs and Debugging: Network Problems Permissions Data Consistency Issues Insufficient Space Optimization and Best Practices: Parallel Processing Data Compression Incremental Migration Test
How to clean all data with redis
Apr 10, 2025 pm 05:06 PM
How to clean all Redis data: Redis 2.8 and later: The FLUSHALL command deletes all key-value pairs. Redis 2.6 and earlier: Use the DEL command to delete keys one by one or use the Redis client to delete methods. Alternative: Restart the Redis service (use with caution), or use the Redis client (such as flushall() or flushdb()).
Navicat's method to view PostgreSQL database password
Apr 08, 2025 pm 09:57 PM
It is impossible to view PostgreSQL passwords directly from Navicat, because Navicat stores passwords encrypted for security reasons. To confirm the password, try to connect to the database; to modify the password, please use the graphical interface of psql or Navicat; for other purposes, you need to configure connection parameters in the code to avoid hard-coded passwords. To enhance security, it is recommended to use strong passwords, periodic modifications and enable multi-factor authentication.
