I am not familiar with shell script and not really have much experience. How to produce a Unix shell script that will display a welcoming message to the current username. Next, the script will show the current directory path, and the extended information of the current directory contents. The script will later create a directory named myDir in the current directory. Assuming that the directory is accessible by all. The script will change the access permission of
the myDir directory to only readable by the owner.
