Dot and Double Dots

Using . and ..

Two shortcuts help us work with files and directory paths when working on the command line: the dot (.) and the double dot (..).

Switch to the /var directory and use the ls -alh command to get a list of the files in the current directory, including the hidden ones:

$ cd /var
$ ls -alh

Take a look at the top two entries in the listing. Run the commands on the terminal below.