1. Name cd - change directory 2. Frequently used options - change to previous directory 3. Examples In unix systems there two most frequently used commands, one is "ls" and the other is "cd". Command "cd" allows us to navigate through file system. To navigate to /etc/ directory simply enter: $ cd /etc  To navigate to previous directory we can enter: $ cd -  By entering cd without any arguments navigate to home directory: $ cd  4. Relative Path  5. Absolute Path
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