Create 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"
Attached (bash) shell script (145279.sh) first prints a welcome message ...
The solution is provided as a Bash script, that allows the flexibility to compute grades for different number of students during each invocation without needing to modify the script file.