mirror of
https://github.com/chaos-zhu/easynode.git
synced 2026-05-16 19:25:44 +08:00
90 lines
2.2 KiB
Bash
90 lines
2.2 KiB
Bash
#!/usr/bin/env bash
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#Blog:https://www.moerats.com/
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Green="\033[32m"
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Font="\033[0m"
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Red="\033[31m"
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#root权限
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root_need(){
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if [[ $EUID -ne 0 ]]; then
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echo -e "${Red}Error:This script must be run as root!${Font}"
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exit 1
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fi
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}
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#检测ovz
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ovz_no(){
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if [[ -d "/proc/vz" ]]; then
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echo -e "${Red}Your VPS is based on OpenVZ，not supported!${Font}"
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exit 1
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fi
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}
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add_swap(){
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echo -e "${Green}请输入需要添加的swap，建议为内存的2倍！${Font}"
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read -p "请输入swap数值(单位: MB):" swapsize
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#检查是否存在swapfile
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grep -q "swapfile" /etc/fstab
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#如果不存在将为其创建swap
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if [ $? -ne 0 ]; then
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echo -e "${Green}swapfile未发现，正在为其创建swapfile${Font}"
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fallocate -l ${swapsize}M /swapfile
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chmod 600 /swapfile
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mkswap /swapfile
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swapon /swapfile
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echo '/swapfile none swap defaults 0 0' >> /etc/fstab
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echo -e "${Green}swap创建成功，并查看信息：${Font}"
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cat /proc/swaps
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cat /proc/meminfo | grep Swap
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else
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echo -e "${Red}swapfile已存在，swap设置失败，请先运行脚本删除swap后重新设置！${Font}"
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fi
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}
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del_swap(){
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#检查是否存在swapfile
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grep -q "swapfile" /etc/fstab
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#如果存在就将其移除
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if [ $? -eq 0 ]; then
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echo -e "${Green}swapfile已发现，正在将其移除...${Font}"
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sed -i '/swapfile/d' /etc/fstab
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echo "3" > /proc/sys/vm/drop_caches
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swapoff -a
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rm -f /swapfile
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echo -e "${Green}swap已删除！${Font}"
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else
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echo -e "${Red}swapfile未发现，swap删除失败！${Font}"
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fi
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}
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#开始菜单
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main(){
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root_need
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ovz_no
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clear
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echo -e "———————————————————————————————————————"
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echo -e "${Green}Linux VPS一键添加/删除swap脚本${Font}"
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echo -e "${Green}1、添加swap${Font}"
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echo -e "${Green}2、删除swap${Font}"
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echo -e "———————————————————————————————————————"
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read -p "请输入数字 [1-2]:" num
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case "$num" in
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1)
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add_swap
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;;
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2)
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del_swap
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;;
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*)
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clear
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echo -e "${Green}请输入正确数字 [1-2]${Font}"
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sleep 2s
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main
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;;
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esac
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}
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main |