How to copy one file contents to another file in Linux

Originally published at: https://www.cyberciti.biz/faq/how-to-copy-one-file-contents-to-another-file-in-linux/

I’m a new Linux system user. I don’t know much about the Ubuntu terminal. I have a file named data.txt. How do I copy data.txt file contents to another file called data.backup.txt in CentOS Linux? How do I duplicate file in a Linux-based computer before I make any modification to the original file?


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