正解:B,D,E
Explanation
The common Linux commands for file management are mv, cp and mkdir. The mv command moves or renames files and directories. The cp command copies files and directories. The mkdir command creates directories. The copy and move commands are not valid Linux commands. References:
* LPI Exam 101 Detailed Objectives, Topic 103: GNU and Unix Commands, Weight: 25, Objective
103.1: Work on the command line
* LPI Linux Essentials Study Guide, Chapter 3: Working on the Command Line, Section 3.2: Basic Commands, Page 55