Solve : Shell commands??

1.	Solve : Shell commands??
Answer» I am new to this Unix stuff. Could anyone POSSIBLY provide the COMMANDS to... 1. Find all logged-in users with usernames of at least 5 characters. 2. Find all users on your system WHOSE user ids are greater than 77. 3. Find the number of users on your system whose user ids are greater than 66. 4. List all the files in your directory in decreasing ORDER of FILE size. Thanks in advance.

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