ls: linux's dir
cd [path]: same with windows. more: cd .. : change current directory to up level
mv [org] [dest]: move a file
cp [org] [dest] : copy a file
touch [filename]: create a empty file
cat [filename]: view the content of target file
ps: show current process
pwd: show current directory
clear: same with cls
mkdir: create a directory
rmdir: remove a directory
BTW, this blog is written in ubuntu...