The cp command on Unix/linux is a command to copy files and directories. Since the cp command has existed for a long time(it appeared in the first Unix V1), it can be used with any UNIX/Linux OS.
option
-R : copy directory recursively
[vagrant@localhost tests]$ ls
index.php test
[vagrant@localhost tests]$ cp -r test test2
[vagrant@localhost tests]$ ls
index.php test test2
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