Linux命令uname -a输出分割成数组

# 将 uname -a 的输出分割成数组
IFS=" " read -ra INFO <<< "$(uname -a)"

# 打印数组中的各个元素
echo "System Name: ${INFO[0]}"
echo "Node Name: ${INFO[1]}"
echo "Kernel Version: ${INFO[2]}"
echo "Release Date and Time: ${INFO[3]} ${INFO[4]} ${INFO[5]}"
echo "Machine Hardware: ${INFO[6]}"
echo "Operating System: ${INFO[7]} ${INFO[8]} ${INFO[9]} ${INFO[10]}"

读取os-release文件，特殊版本操作系统可能没有

#!/bin/bash

if [ -f /etc/os-release ]; then
    # Load the os-release file
    . /etc/os-release

    # Check for some common Linux distributions
    case "$ID" in
        ubuntu)
            echo "This is Ubuntu"
            ;;
        centos)
            echo "This is CentOS"
            ;;
        fedora)
            echo "This is Fedora"
            ;;
        *)
            echo "This is another distribution"
            ;;
    esac
else
    echo "Couldn't determine the Linux distribution"
fi