?? grade_evaluate.sh
字號:
#!/bin/sh
# Usage: ./grade_evaluate grade
# grade should be between 0 and 100, including 0 and 100
if [ '$1' –lt '0' ] ; then
echo "Error: invalid grade"
elif [ '$1' –lt '60' ] ; then
echo 'no pass'
elif [ '$1' –lt '70' ] ; then
echo "pass"
elif [ '$1' –lt '80' ] ; then
echo 'good'
elif [ '$1' –le '100' ] ; then
echo 'excellent'
else
echo'Error: invalid grade'
fi
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