pwd : shows present folder where you are working
$pwd
ls : List all the folders
$ls
mkdir: Create a new Folder$mkdir Folder1
cd : Goes to the Folder
$cd
touch : Create a new file
$ touch a.txt
cat :Print the content in a file
$ cat a.txt
mv : Moves a file from one location to another
$ mv filename foldername
rm : Deletes a file or folder.
$ rm Folder1