Need help to get the step by step solution of these three questions please. And also need output too (Linux)

5. Create a file called catFile. What file permissions does it have? Change file permissions to the equivalent of 755 using the symbolic notation format. 6. Create a symbolic link to the file catFile called notcatFile. 7. Create a hard link to the file catFile called hardcatFile. Create it in a sub-directory called animals