1. What will be the effect of the following commands?Explain.

• who | grep 'test'
• who | grep 'test$'
• grep '[Aa]um' doc?/*
• ls -l | sort -k5n
• date | cut -c13-17

2. Write a command to find all users on UNIX server whose userIDs are greater than 149, and the number of users on your UNIXserver whose user IDs are greater than 149. Justify yoursolution.

3. Write a script pathcomparision that compares the directoriesspecified in TESTPATH

and PATH, reporting on any that don'tappear in both.

4. Write script commands that we can use to control the flow ofexecution in the program. Explain two of the these command and givean example for one of them. (10 points)

Answer rating: 100% (QA)

Answer and step by step explanation 1 who grep test This command will search through the output of the who command and return any lines containing the ... View the full answer