Ensure you are in the home directory of any account $($student$1$ or $2).$ Create a file called labfile$7.$ What are the permissions on this file, in symbolic notation?

Explain in detail, how the permissions got set this way on this file, in regard to umask. Be Specifc. $($Also explain why execute is not set on this file$)?$

Create a subdirectory called subdir$3.$ What are the permissions on this directory file, in octal notation?

Explain in detail, how the permissions got set this way on this directory in regard to umask Be Specifc.

Clearly explain the reason for the difference between the output of echo $HOME and echo ISHOMIE?

Explain what happens when just running the cd command:

Explain why the cd Shome command also changes your pwd back to your home directory: