Basic Command Linux Debian

This is basic command on linux debian :
1. ls : view active directory. Example : ls /home/arul/public_html
2. cp : copy file. Example : cp /home/arul/tes1.txt /etc/home/arul/tes1.txt
3. mkdir : make directory. Example : mkdir arul
4. rm : remove file. example : rm /home/arul/oneone.txt
5. mv : move file. example : mv /home/arul/tes1.txt /etc/home/ana/tes1.txt
6. rmdir :  remove directory.
7. cd : change directory. Example : cd /etc/