Please provide screenshots for the following so, I may see how the commands work thank you.

• Use the linux command to show your current group membership
• Create a new file called "Assign3-1.txt". Remove the read permissions using the octal notation method so that only the Owner has read permission.
• Create a new file called "Assign3-2.txt". Same as above, but use the symbolic notation
• Create three new groups called "engr", "sales", and "engr-sales"
• Create two new users called "bob" and "sue"
• Put bob in the engr and engr-sales groups and put sue in the sales and engr-sales groups. Use the linux command to verity their group memberships
• Create a new folder called "SharedEngrSales". Configure it so that users from the engr-sales group can share documents for both read and write among themselves
• Start the following long-running process: "tree / > tree.out". Quickly, before it finishes, pause the process and put it in the background. Type a command (perhaps "ls") and then bring the background process to the foreground
• Start another long-running process (same as above). Pause the process and then kill it
• Display the list of environmental variables (without showing aliases and functions)
• Display a list of systemd services that are currently configured