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This article will explain in detail what is the use of the sync command in the Linux system. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

In Linux system, sync command is mainly used for data synchronization.

When we save data on a computer, we actually save it in memory for a certain period of time, and then write it to the hard disk. This is actually a caching mechanism, and when data stored in memory needs to be read, it is much faster to read from memory than from the hard disk.

However, this can also cause some problems. If there is a sudden rock machine (such as a power outage) before the data can be saved to the hard drive, the data will be lost.

When we shut down the Linux system, we can use the sync command to force the data in memory to be saved to the hard disk.

The general system automatically executes the sync command when shutting down by default.

This is the end of this article on "what is the use of sync commands in Linux systems?". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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