linux_check.sh

Linux Check Shell

#/bin/bash
linux_check() {
	if $(grep -qi "CentOS" /etc/issue) || $(grep -q "CentOS" /etc/*-release); then
		OS="CentOS"
	elif $(grep -qi "Ubuntu" /etc/issue) || $(grep -q "Ubuntu" /etc/*-release); then
		OS="Ubuntu"
	elif $(grep -qi "Debian" /etc/issue) || $(grep -q "Debian" /etc/*-release); then
		OS="Debian"
	else
		cat >&2 <<-'EOF'
		本脚本仅支持 CentOS 6+, Debian 7+ 或者 Ubuntu 12+, 其他系统请向脚本作者反馈以寻求支持!
		EOF
		exit 1
	fi

	OS_VSRSION=$(grep -oEh "[0-9]+" /etc/*-release | head -n 1) || {
		cat >&2 <<-'EOF'
		无法获取操作系统版本, 请联系脚本作者反馈错误!
		EOF
		exit 1
	}

	if [ "$OS" = "CentOS" -a $OS_VSRSION -lt 6 ]; then
		cat >&2 <<-'EOF'
		暂不支持 CentOS 6 以下版本, 请升级系统或向脚本作者反馈以寻求支持!
		EOF

		exit 1
	fi

	if [ "$OS" = "Ubuntu" -a $OS_VSRSION -lt 12 ]; then
		cat >&2 <<-'EOF'
		暂不支持 Ubuntu 12 以下版本, 请升级系统或向脚本作者反馈以寻求支持!
		EOF
		exit 1
	fi

	if [ "$OS" = "Debian" -a $OS_VSRSION -lt 7 ]; then
		cat >&2 <<-'EOF'
		暂不支持 Debian 7 以下版本, 请升级系统或向脚本作者反馈以寻求支持!
		EOF
		exit 1
	fi
}