UNIX

Part 1: Key Assignment Draft
During this week’s IP, you will submit a first draft of your Key Assignment from Weeks 1–4.
Part 2
This IP will have you describe the various file permissions that a file might have. You should also describe the setuid
permissions. Next, you will be required to set the file permissions on all of the class files so that only the file owner can
access the DB and IP files, only the group participants can read the Key Assignment files, and everyone else has no access.
In addition, many UNIX operating systems utilize the UNIX file system (UFS). Linux can use the extX file system. Describe the
features of these 2 file systems and describe at least 1 additional file system feature for each platform. Complete the
following:
Scripting
Using the VI/VIM editor, edit your script from Phase 3 to:
Set the file permissions for the scenario company directories:
The file owner can read, modify and access the scenario company directories
The group members can read and access the scenario company directories
Everyone else has no access.
Create a file in each of the scenario company directories.
Set the file permissions for the files in the scenario company directories.
The owner can read and modify the file
The group members can only read the file
Everyone else has no permissions
Name the script “1st-initial_Lastname-CS126-p4.sh”
Submit the script to the Submitted Assignments area of the class website.
New content for Section 4: UNIX File Systems
Describe file permissions and the file permissions mask.
Provide the file permission commands to change the permissions masks for the scenario company directories.
The file owner can read, modify and access the scenario company directories
The group members can read and access the scenario company directories
Everyone else has no access
Provide the commands to create a file in each of the scenario company directories
Provide the file permission commands to change the permissions masks for the files in the scenario company directories
The owner can read and modify the file
The group members can only read the file
Everyone else has no permissions at all

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