pwd is a command, print working directory, this shows your current directory
whoami-shows the current user name.
ls -l : shows the contents of the current directory. –l: is a parameter meaning “long list include access permissions, ownership and date & time.
sudo su - This command allows you to switch as a normal user into a root user
touch command-create a file
rmdir: command to remove a directory & mkdir: command for making a directory
cd: change directory
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