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This article mainly introduces "how to restore linux mistakenly deleted files". In daily operation, I believe many people have doubts about how to restore linux mistakenly deleted files. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "how to restore linux mistakenly deleted files". Next, please follow the editor to study!

Methods: 1, use the "debugfs" command to find the offset value and blockvalue of the mistakenly deleted file; 2, use the "dd if= source file of= target file bs=offset value count=1 skip=block value" command to restore the file.

The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

How to recover files deleted by linux by mistake

Examples are as follows:

Execute the command "cd / home" to enter the server root directory home

Execute the command "touch demo.txt" to create a presentation

Execute the command "rm-rf demo.txt" to delete the file

Execute the command "debugfs" to repair using the system's own recovery tool debugfs

Open an extra xshell and execute the command "df / home/" to open the partition where the file has just been deleted

Execute the command "open / dev/mapper/vg_root-lv_root" to view the directory partition

Execute the command "ls-d / home" to display the directory where the deleted files are located

Execute the command "logdump-I" to find the block number of the file

Remember the values after block above and execute the command "quit" to exit debugfs

Execute the command "dd if=/dev/mapper/vg_root-lv_root of=/home/demo.txt bs=640 count=1 skip=1089" to restore the file operation

The values of bs and offset are the same as those of the figure above, and the values of skip and block are the same.

Execute the command "ls" to see that the file demo.txt has been deleted and then recovered successfully.

At this point, the study on "how to restore linux mistakenly deleted files" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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