[：二元条件运算符的参数太多了

Question

我正在尝试编写脚本但是它给出了上述错误

 if [ [ [ "$1" != "abc" ] && [ "$1" != "def" ] ] || [ [ "$2" != "1" ] && [ "$2" != "0" ] ] ];
 then
    echo "Hello World"
 fi

Answer 1

小心&&和||。你可以在BASH中简化它：

if [[ "$1" != "abc" && "$1" != "def" ]] || [[ "$2" != "1" && "$2" != "0" ]];
then
    echo "Hello World"
fi