Which command would you use to copy files in Linux?

The command used to copy files in Linux is cp. This command is designed specifically for copying files and directories from one location to another. When you use cp, you can specify both the source file or directory and the destination where you want the copy to be placed.

For example, if you want to copy a file named file1.txt to a new file named file2.txt, you would use the command:

cp file1.txt file2.txt

This effectively duplicates file1.txt at the specified destination.

The other commands do not serve the purpose of copying files in the same way. The command copy is not a valid command in typical Linux distributions for file copying; it is more commonly associated with DOS or Windows environments. The mv command is used to move files, which effectively "cuts" the file from the source location and places it in the destination, rather than creating a copy. Lastly, duplicate is not a standard command in Linux for file handling. Thus, cp is the correct and standard command for copying files in a Linux environment.