Compute student grades via linux shell script

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Reference no: EM1378957

Construct a shell script to run on Knoppix/Linux, that will compute and display the letter grades for the students based on the average of 4 test scores.

Letter grade is computed from average score using following scale:

90 to 100 : grade "A"
80 to 89 : grade "B"
70 to 79 : grade "C"
65 to 69 : grade "D"
0 to 64 : grade "F"

Reference no: EM1378957

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