27. 脚本：数字比较

3.3 俩数比较脚本

vim compare_2_num.sh
#!/bin/bash
a=$1
b=$2
if [   "$a" -lt "$b"  ];then
    echo "$a is less than $b"
fi
if [ "$a" -eq "$b" ];then
    echo "$a is equal $b"
fi
if [ "$a" -gt "$b" ];then
    echo "$a is great than $b"
fi

改造为多分支语句

#!/bin/bash
a=$1;b=$2
if [  "$a" -lt "$b"  ];then
    echo "$a is less than $b"
elif [  "$a" -eq "$b"  ];then
    echo "$a is equal $b"
else
    echo "$a is great than $b"
fi

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最后更新: 2022-02-19 13:59:07