常用shell脚本

HelloWorld脚本：

#!/bin/bash
echo "Hello World!"

读取用户输入并输出脚本：

#!/bin/bash
echo "Please enter your name:"
read name
echo "Hello $name!"

循环脚本：

#!/bin/bash
for i in {1..10}
do
   echo "Count: $i"
done

判断是否存在指定文件脚本：

#!/bin/bash
if [ -f "/path/to/file" ]
then
    echo "File exists."
else
    echo "File does not exist."
fi

判断两个数大小关系脚本：

#!/bin/bash
echo "Enter two numbers:"
read num1
read num2
if [ $num1 -gt $num2 ]
then
    echo "$num1 is greater than $num2"
elif [ $num1 -eq $num2 ]
then
    echo "$num1 is equal to $num2"
else
    echo "$num1 is less than $num2"
fi

计算两个数的和脚本：

#!/bin/bash
echo "Enter two numbers:"
read num1
read num2
sum=$(($num1 + $num2))
echo "The sum of $num1 and $num2 is: $sum"

判断文件夹是否存在脚本：

#!/bin/bash
if [ -d "/path/to/folder" ]
then
    echo "Folder exists."
else
    echo "Folder does not exist."
fi

删除指定文件脚本：

#!/bin/bash
rm /path/to/file
echo "File deleted."

复制指定文件脚本：

#!/bin/bash
cp /path/to/source /path/to/destination
echo "File copied."

输出当前系统时间脚本：

#!/bin/bash
now=$(date +"%T")
echo "Current time: $now"