Path Names

• Always specifying the absolute pathname for a file is tedious!
• Introduce the idea of a working directory; Files are referenced relative to the working directory
• Example: cwd = /home/dizin, profile = /home/dizin/.profile
• Absolute pathname; A path specified from the root of the file system to the file
• A Relative pathname; A pathname specified from the cwd
• Note: `.' (dot) and `..' (dotdot) refer to current and parent directory
  • Example: cwd = /home/dizin
  • ../../etc/passwd
  • /etc/passwd
  • ../dizin/../.././etc/passwd
  • Are all the same file