readlink

• Prints the resolved symbolic links
• If we have file which is a symbolic link to file which in turn is another symbolic link to a file and so on ...
• The readlink command will display the actual file the initial symbolic link is referring to
• Example usage

  • readlink -f /usr/bin/pico

  • Output: ******/usr/bin/nano

  • This means the pico editor is actually nano editor

    

  • Proof

    

.bashrc

• It is a config file that is read by the bash shell every time it opens
• It is present in ~

nano

nano is a text editor, example syntax is nano filename

It also does syntax highlighting