A.rm/etc/passwd/tmp/pass B.mv/etc/passwd/tmp/pass C.cp-r/etc/passwd/tmp/pass D.cp-rf/etc/passwd/tmp/pass
A.mv/root/file1/root/file2 B.cp/root/file1/root/file2 C.rm/root/file1/root/file2 D.touch/root/file1/root/file2
A.rm1.txt B.mkdir1.txt C.touch1.txt