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Editor to share with you the use of linux dd command to copy files and conversion, I hope you will learn a lot after reading this article, let's discuss it together!

The dd command copies a file with a block of the specified size and performs the specified conversion at the same time.

Note: if the specified number ends with the following characters, it will be multiplied by the corresponding number: bounded 512 / cross 1 / 10 / 1024 / 2

Syntax format: dd [parameters]

Common parameters:

-v displays version information-h displays help information

Reference example

Back up the local / dev/hdb disk to / dev/hdd:

[root@linuxcool ~] # dd if=/dev/hdb of=/dev/hdd

Restore the compressed backup files to the specified disk:

[root@linuxcool ~] # gzip-dc / root/image.gz | dd of=/dev/hdb

The string is read in by the standard input device, converted to uppercase, and then output to the standard output device:

[root@linuxcool ~] # dd conv=ucase

Convert all English letters in the testfile file to uppercase, and then convert to the testfile_1 file:

[root@linuxcool ~] # dd if=testfile_2 of=testfile_1 conv=ucase

Repair the hard drive:

[root@linuxcool ~] # dd if=/dev/sda of=/dev/sda has finished reading this article. I believe you have some understanding of copying and converting files using linux's dd command. Want to know more about it. Welcome to follow the industry information channel. Thank you for reading!

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