linux - 尝试同时测试大于和小于时，参数过多错误

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如标题所述，我只希望该行测试变量是否大于10但小于30，但返回的错误为“参数过多”

if [ -f myClass ] && grep 'John Smith' myclass > /dev/null

then cat myclass

elif [ -f grades ]

then

grep "s100" grades

elif
[ $ca82 -gt 10 -a $ca82 -lt 30 ]

then
echo "success"

else
echo "test 2"

fi

最佳答案

elif [ $ca82 -gt 10 ] && [ $ca82 -lt 30 ]

提供您在某处设置$ca82