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- In-depth understanding of the meaning of 2>&1 in Linux shell (the most comprehensive on the entire network, you will understand after reading it)
- The symbol >& is a whole and cannot be separated. Once separated, it will not have the above meaning. For example, some people may think this: 2 is standard error input, 1 is standard output, and > is the redirection symbol. So should "redirect standard error output to standard output" be written as "2>1"? is that so?
- Linux Operation and Maintenance 1479 2023-08-03 16:14:33
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- Linux mind map organization (recommended collection)
- Today I sorted out the collection of Linux mind maps.
- Linux Operation and Maintenance 1545 2023-08-03 16:06:07
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- These Linux tools are amazing! Which one have you used?
- These Linux tools are amazing! Which one have you used?
- Linux Operation and Maintenance 1085 2023-08-03 15:56:54
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- Find duplicate files using Linux
- This section is an extended usage description of the powerful functions of find. On the basis of find, we can combine it with other basic Linux commands (such as the xargs command) to create unlimited command line functions. For example, we can quickly find files in a Linux folder and its subfolders. List of duplicate files. The process to implement this function is relatively simple. Just search and traverse all the files, and then use the command to compare the MD5 of each file.
- Linux Operation and Maintenance 2307 2023-08-03 15:51:00
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- 10 Linux commands to make your operations more efficient
- 10 Linux commands to make your operations more efficient
- Linux Operation and Maintenance 1349 2023-08-03 15:49:16
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- The complete list of commonly used Linux commands
- A complete list of commonly used Linux commands
- Linux Operation and Maintenance 997 2023-08-03 15:42:58
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- A 10,000-word summary of commonly used Linux commands & practical commands
- Linux is actually a skill that must be mastered by both front-end and back-end. Currently, many children's shoes on the front-end are taking the big front-end route, not to mention the back-end. The editor has written tens of thousands of words for you (this article has been deleted due to word limit) about Linux. It can be said that these are the basic commands for actual combat that must be mastered. Of course, these are not enough. The editor will continue to update them later. You can pay attention to my updates and list them. This wave can be collected.
- Linux Operation and Maintenance 1491 2023-08-03 15:41:34
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- Linux environment variable configuration summary
- You can customize an environment variable file, such as defining uusama.profile under a certain project. Use export to define a series of variables in this file, and then add: sourc uusama.profile after the ~/.profile file, so that you can You can use a series of variables defined by yourself in the Shell script when logging in.
- Linux Operation and Maintenance 1550 2023-08-03 15:32:05
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- Summary: 20 Linux server performance tuning tips
- Linux is an open source operating system that supports various hardware platforms. Linux servers are world-famous. The main difference between Linux and Windows is that Linux servers generally do not provide a GUI (graphical user interface) by default, but a command line. The main purpose of the interface is to efficiently handle non-interactive processes. Response time is not so important. On the contrary, being able to handle high loads for a long time is the most critical.
- Linux Operation and Maintenance 1140 2023-08-03 15:22:36
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- Learn all aspects of Vim split-screen operation in 5 minutes
- Vim's split-screen function is implemented by splitting windows, which is a great tool for improving work efficiency. Whether we want to display two files at the same time, or display two different locations of a file at the same time, or compare two files side by side, etc., these can be achieved through split screen, which is very convenient for code comparison and copy and paste.
- Linux Operation and Maintenance 1661 2023-08-03 15:20:58
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- 9 practical shell scripts, recommended to collect!
- 9 practical shell scripts, recommended to collect!
- Linux Operation and Maintenance 1113 2023-08-03 15:09:02
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- Classic Thirteen Questions About Shell Scripts
- We know that the operation of a computer is inseparable from hardware, but it cannot directly operate the hardware. The driver of the hardware can only be controlled through a software called "OS (Operating System)." Strictly speaking, Linux is an operating system (OS).
- Linux Operation and Maintenance 1617 2023-08-03 15:03:00
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- Summary of Linux performance optimization knowledge points · Practice + Collection Edition
- The essence of the performance problem is that the system resources have reached the bottleneck, but the request processing is not fast enough to support more requests. Performance analysis is actually to find the bottlenecks of the application or system and try to avoid or alleviate them.
- Linux Operation and Maintenance 881 2023-08-03 15:01:50
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- Summary of Linux performance all-round tuning experience
- The essence of the performance problem is that the system resources have reached the bottleneck, but the request processing is not fast enough to support more requests. Performance analysis is actually to find the bottlenecks of the application or system and try to avoid or alleviate them.
- Linux Operation and Maintenance 1335 2023-08-03 14:59:49
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- Linux - 11 steps to teach you how to perfectly check whether your server has been compromised
- As open source products become more and more popular, as a Linux operation and maintenance engineer, it is crucial to be able to clearly identify whether abnormal machines have been hacked. Based on my own work experience, I have sorted out several common situations where machines have been hacked. for reference
- Linux Operation and Maintenance 2048 2023-08-03 14:52:37
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