在 bash if/then 语句中比较整数和小数时遇到问题

发布于 2025-01-11 04:54:22 字数 410 浏览 0 评论 0原文

我在 bash if/then 语句中比较整数和小数时遇到问题。我正在编写一个简短的脚本来检查系统上的 Linux 版本，如果它低于 7.9，它将创建一个警报。我尝试将比较运算符更改为有效的东西。 (-lt/-gt、、/< />)

#!/bin/bash

linux_version=$(sudo cat /etc/centos-release | cut -b 22-24)
if [ $linux_version -lt 7.9 ]
    echo 'This server needs to be updated to 7.9 Current Version: '$linux_version
then 
    exit 1
else 
    echo 'This server is updated'
    exit 0
fi

原文

I am having trouble comparing integers with decimals in bash if/then statement. I am writing a short script that checks the linux version on a system and if it below 7.9 it will create an alert. I have tried changing the comparing operator to something that works. (-lt/-gt, </>, /< />)

#!/bin/bash

linux_version=$(sudo cat /etc/centos-release | cut -b 22-24)
if [ $linux_version -lt 7.9 ]
    echo 'This server needs to be updated to 7.9 Current Version: '$linux_version
then 
    exit 1
else 
    echo 'This server is updated'
    exit 0
fi

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