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student#:LastName:Firstname:MiddleInitial:QuizAvg.:MidTermScore:ProblemScore:FinalExamScore

i1000:TRINITY:JOAN K:92:92:93:90
1001:BLUMOFF:SAM Q:66:74:94:67
1002:PARTNEY:V C:84:82:100:50
1003:GRANT:RICK R:94:93:99:92
1004:TIPTON:FRED J:65:65:50:63
1005:KELSO:MIKE K:65:55:66:25...

Develop a grade calculating program. This program will process all students in the file. This program should neatly display each field of each student's record *and* adds the following items: Course...

find . "(" -name a.out -o -name core ")" -exec rm {} \;


Specifically

What files are trying to be found
What does the -o do in this command
What is the result if the files are found
What...

Specifically what is the purpose of sed?
What is f?
Why is the 'cp f $phonefile' line needed when the script ‘goes live'?
Why might that two commands following sed...