Create, delete, copy, and move files and directories
Basic commands: mkdir, rm, touch, cp and mv.
Move back to your previous directory (- is converted to $OLDPWD): cd -
Create multiple files in a dir at once: touch /path/to/dir/{a,f,g}.md
Or, to create them with names in a linear sequence: touch /path/to/dir/{a..g}.md
To recursively remove a dir and its content without being prompted: rm -rf /home/user/somedir
To list directories themselves, not their contents: ll -d /home/user/somedir