Path or location in current directory tree is ether refereed to as Absolute or Relative. Lets take a look at what they are.
Absolute path also known as full or fully qualified path points to a file or directory in relation to / . When we execute pwd command we get absolute path.
Command indicates that /home/john is absolute path for users john home directory. The path begins with / indicating full path.
Relative path points to a file in relation to current location in directory tree.
Relative path examples:
This represents a parent directory in relation to current directory
And now we can access john using relative path