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cp is the Linux copy file command. cp has many options.

cp file1.txt file2.txt

The basic form of the copy command copies one file from one location to another.

cp -p file1.txt file1org

One useful variation of the command is to preserve all the attributes of the source file. In this case, the source files is file1.txt.

cp -rp /home/* /mnt/backup/home

The recursive option can be added to the perserve option. This combination of options is helpful during the recovery of a failed system. knoppix can be used to mount a bad harddrive. You can attempt to use the copy command to copy all the files that are salvagable.