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This article mainly shows you "Rsync how to achieve file copy", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "Rsync how to achieve file copy" this article.

If you need to perform automatic backup operations or deploy security policies, whether for a single workstation or for all servers and workstations within a network, the rsync tool is definitely a good choice. It can report the occurrence of all accidents in time, especially when it is used in conjunction with other appropriate tools, it can greatly improve the security performance.

Rsync is designed as a simple file copying tool, but unlike other copying tools, such as cp and rcp, it is more functional than them. Because rsync has the function of checking and comparing, it can decide which files need to be copied and which files already exist on the target machine without copying. For example, if you need to copy a directory of 30 files on a foo computer to a bar machine, and if you choose cp, only files are copied, and files with the same filename on the bar machine are overwritten, and some files may have been copied from foo to bar. However, if rsync is selected, it will quickly compare the same directory on foo and bar to see the difference between them. * copy those files that exist on foo but not on bar to bar without copying duplicate files. This will greatly save the total time spent on file copies, especially if you need to back up data from one machine to another. Rsync tools are very simple and convenient to use, and can enhance the security of operations if used properly. In addition, it can also be used as a security detection tool to complete the integrity audit of the file system without the support of any other software.

File copy function

The implementation of data security generally requires backup of critical data. It can be solved by imitating the business methods of small businesses, such as going to every workstation in the office and recording some important documents to a CD, which is faster than running some automatic backup software on the network. Of course, the most effective way is to use the current low-cost backup server with high-speed hard disk to copy the files that need to be backed up to the backup server's hard disk on a regular basis through the network. For those units with large office tasks, an old-fashioned computer can be called to play the role of this backup server, which is extremely simple when no one is using the network, such as in the middle of the night or on weekends. copy important data files and complete the backup. Rsync copying files between computers over a network is a very simple process. "if the file you need to copy is on a Linux system, there is an extremely simple way to type the following command on the target Linux system:"

Rsync localdir host:remotedir

The above command line uses the default operation of rsync to specify the directory you want to copy on the local system (localdir), as well as the hostname of the remote system (host) and the directory to store the copied files (remotedir). "for example, if you want to copy the / home/baz directory on the foo system to the / home/backup/qux directory of the host bar, on the host foo, the command you need to type is:"

Rsync / home/baz bar:/home/backup/qux

The above is all the contents of the article "how to copy files in Rsync". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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