常见bash命令

1. 显示字符串

Echo “String”

2. for 循环

for((i = 1; i < 100; i += 2))
do
    echo $i
done

参考 https://www.garron.me/en/articles/bash-for-loop-examples.html

3. 接受输入 read

read name
echo "Welcome $name"

4. if-elif-else

if [[ var1 -lt var2 ]]; then
    echo "X is less than Y"
elif [[ var1 -eq var2 ]]; then
    echo "X is equal to Y"
else
    echo "X is greater than Y"
fi

5. 逻辑运算符

if [ $var1 == "y" ] || [ $var1 == "Y" ]; then
    echo "YES"
else
    echo "NO"
fi