2024年度大更新！VPS常用脚本大全 DD网络重装脚本：系统默认为debian12moeclub大佬的脚本bash <(wget --no-check-certificate -qO- 'https://raw.githubusercontent.com/MoeClub/Note/master/InstallNET.sh') -d 12 -v 64 -p 密码 -port 端口 -a -firmwareleitbogioro大佬的脚本（推荐）wget --no-check-certificate -qO InstallNET.sh 'https://raw.githubusercontent.com/leitbogioro/Tools/master/Linux_reinstall/InstallNET.sh' && chmod a+x InstallNET.sh && bash InstallNET.sh -debian 12 -pwd '密码'beta.gs大佬的脚本wget --no-check-certificate -O NewReinstall.sh https://raw.githubusercontent.com/fcurrk/reinstall/master/NewReinstall.sh && chmod a+x NewReinstall.sh && bash NewReinstall.sh5k哥的脚本服务器综合测试脚本（融合怪）（推荐）GitHub开源地址 curl -L https://gitlab.com/spiritysdx/za/-/raw/main/ecs.sh -o ecs.sh && chmod +x ecs.sh && bash ecs.sh性能测试脚本YABS（推荐）GitHub开源地址wget -qO- yabs.sh | bash流量稀缺的服务器（不测试iperf网络）curl -sL yabs.sh | bash -s -- -i我更喜欢geekbench5（不测试geekbench6）curl -sL yabs.sh | bash -s -- -5我喜欢geekbench5，但服务器流量稀缺（不测试geekbench6、不测试iperf网络）curl -sL yabs.sh | bash -s -- -5 -iGeekbench 5 专测脚本 GitHub开源地址bash <(curl -sL gb5.top)LemonBench GitHub开源地址wget -qO- https://raw.githubusercontent.com/LemonBench/LemonBench/main/LemonBench.sh | bash -s -- --fastUnixBench.shwget --no-check-certificate https://github.com/teddysun/across/raw/master/unixbench.sh chmod +x unixbench.sh ./unixbench.sh网络测试脚本hyperspeed 三网测速（推荐）（未开源）bash <(curl -Lso- https://bench.im/hyperspeed)AutoTrace 三网回程线路显示（推荐）wget -N --no-check-certificate https://raw.githubusercontent.com/Chennhaoo/Shell_Bash/master/AutoTrace.sh && chmod +x AutoTrace.sh && bash AutoTrace.shbacktrace 三网回程线路直接显示（小白用这个）curl https://raw.githubusercontent.com/zhanghanyun/backtrace/main/install.sh -sSf | shBench 网络带宽及硬盘读写速率（国外部分+国内部分节点）wget -qO- bench.sh | bashSuperBench.sh 网络带宽及硬盘读写速率（国内三网+speedtest+fast）wget -qO- --no-check-certificate https://raw.githubusercontent.com/oooldking/script/master/superbench.sh | bash超售测试脚本一键检测超售wget --no-check-certificate -O memoryCheck.sh https://raw.githubusercontent.com/uselibrary/memoryCheck/main/memoryCheck.sh && chmod +x memoryCheck.sh && bash memoryCheck.sh移除virtio_balloon模块rmmod virtio_balloon内存填充测试apt-get update apt-get install wget build-essential -y wget https://raw.githubusercontent.com/FunctionClub/Memtester/master/memtester.cpp gcc -l stdc++ memtester.cpp ./a.out流媒体测试脚本RegionRestrictionCheck（推荐）bash <(curl -L -s check.unlock.media)openai解锁检测bash <(curl -Ls https://github.com/ludashi2020/OpenAI-Checker/raw/main/openai.sh)BBR脚本一键开启BBR（适用于较新的Debian、Ubuntu）echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf sysctl -p sysctl net.ipv4.tcp_available_congestion_control lsmod | grep bbrLinux-NetSpeed（锐速/bbrplus/bbr魔改版）wget -N --no-check-certificate "https://raw.githubusercontent.com/chiakge/Linux-NetSpeed/master/tcp.sh" chmod +x tcp.sh ./tcp.shylx大佬的锐速/BBRPLUS/BBR2wget -O tcpx.sh "https://github.com/ylx2016/Linux-NetSpeed/raw/master/tcpx.sh" && chmod +x tcpx.sh && ./tcpx.shmoerats大佬的添加swap脚本wget https://www.moerats.com/usr/shell/swap.sh && bash swap.shcloudflare warp脚本 添加IPv4/IPv6网络wget -N https://raw.githubusercontent.com/fscarmen/warp/main/menu.sh && bash menu.shfail2ban服务器ssh防爆破wget https://raw.githubusercontent.com/FunctionClub/Fail2ban/master/fail2ban.sh && bash fail2ban.sh 2>&1 | tee fail2ban.log独立服务器硬盘时间wget -q https://github.com/Aniverse/A/raw/i/a && bash a常用软件脚本Dockercurl -sSL https://get.docker.com/ | shAria2一键安装脚本wget -N git.io/aria2.sh && chmod +x aria2.sh && bash aria2.shXUIbash <(curl -Ls https://raw.githubusercontent.com/FranzKafkaYu/x-ui/master/install.sh)宝塔一键挂载硬盘脚本wget -O auto_disk.sh http://download.bt.cn/tools/auto_disk.sh && bash auto_disk.shacme生成免费证书curl https://get.acme.sh | sh剑皇刷流量脚本wget https://cdn.jsdelivr.net/gh/maintell/webBenchmark@releases/download/0.6/webBenchmark_linux_x64 chmod +x webBenchmark_linux_x64 ./webBenchmark_linux_x64 -c 64 -s http://链接.jpg腾讯云删除监控sudo -i systemctl stop tat_agent systemctl disable tat_agent /usr/local/qcloud/stargate/admin/uninstall.sh /usr/local/qcloud/YunJing/uninst.sh /usr/local/qcloud/monitor/barad/admin/uninstall.sh rm -f /etc/systemd/system/tat_agent.service rm -rf /usr/local/qcloud rm -rf /usr/local/sa rm -rf /usr/local/agenttools rm -rf /usr/local/qcloud process=(sap100 secu-tcs-agent sgagent64 barad_agent agent agentPlugInD pvdriver ) for i in ${process[@]} do for A in $(ps aux | grep $i | grep -v grep | awk '{print $2}') do kill -9 $A done done测试 25 端口是否开放telnet smtp.aol.com 25测试 IPv4 优先还是 IPv6 优先curl ip.p3terx.com

9 个非常实用的 shell 脚本 1、Dos攻击防范（自动屏蔽攻击 IP）#!/bin/bash DATE=$(date +%d/%b/%Y:%H:%M) LOG_FILE=/usr/local/nginx/logs/demo2.access.log ABNORMAL_IP=$(tail -n5000 $LOG_FILE |grep $DATE |awk '{a[$1]++}END{for(i in a)if(a[i]>10)print i}') for IP in $ABNORMAL_IP; do if [ $(iptables -vnL |grep -c "$IP") -eq 0 ]; then iptables -I INPUT -s $IP -j DROP echo "$(date +'%F_%T') $IP" >> /tmp/drop_ip.log fi done2、Linux 系统发送告警脚本# yum install mailx # vi /etc/mail.rc set from=baojingtongzhi@163.com smtp=smtp.163.com set smtp-auth-user=baojingtongzhi@163.com smtp-auth-password=123456 set smtp-auth=login3、MySQL 数据库备份单循环#!/bin/bash DATE=$(date +%F_%H-%M-%S) HOST=localhost USER=backup PASS=123.com BACKUP_DIR=/data/db_backup DB_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "show databases;" 2>/dev/null |egrep -v "Database|information_schema|mysql|performance_schema|sys") for DB in $DB_LIST; do BACKUP_NAME=$BACKUP_DIR/${DB}_${DATE}.sql if ! mysqldump -h$HOST -u$USER -p$PASS -B $DB > $BACKUP_NAME 2>/dev/null; then echo "$BACKUP_NAME 备份失败!" fi done4、MySQL 数据库备份多循环#!/bin/bash DATE=$(date +%F_%H-%M-%S) HOST=localhost USER=backup PASS=123.com BACKUP_DIR=/data/db_backup DB_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "show databases;" 2>/dev/null |egrep -v "Database|information_schema|mysql|performance_schema|sys") for DB in $DB_LIST; do BACKUP_DB_DIR=$BACKUP_DIR/${DB}_${DATE} [ ! -d $BACKUP_DB_DIR ] && mkdir -p $BACKUP_DB_DIR &>/dev/null TABLE_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "use $DB;show tables;" 2>/dev/null) for TABLE in $TABLE_LIST; do BACKUP_NAME=$BACKUP_DB_DIR/${TABLE}.sql if ! mysqldump -h$HOST -u$USER -p$PASS $DB $TABLE > $BACKUP_NAME 2>/dev/null; then echo "$BACKUP_NAME 备份失败!" fi done done5、Nginx 访问访问日志按天切割#!/bin/bash LOG_DIR=/usr/local/nginx/logs YESTERDAY_TIME=$(date -d "yesterday" +%F) LOG_MONTH_DIR=$LOG_DIR/$(date +"%Y-%m") LOG_FILE_LIST="default.access.log" for LOG_FILE in $LOG_FILE_LIST; do [ ! -d $LOG_MONTH_DIR ] && mkdir -p $LOG_MONTH_DIR mv $LOG_DIR/$LOG_FILE $LOG_MONTH_DIR/${LOG_FILE}_${YESTERDAY_TIME} done kill -USR1 $(cat /var/run/nginx.pid)6、Nginx 访问日志分析脚本#!/bin/bash # 日志格式: $remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" "$http_x_forwarded_for" LOG_FILE=$1 echo "统计访问最多的10个IP" awk '{a[$1]++}END{print "UV:",length(a);for(v in a)print v,a[v]}' $LOG_FILE |sort -k2 -nr |head -10 echo "----------------------" echo "统计时间段访问最多的IP" awk '$4>="[01/Dec/2018:13:20:25" && $4<="[27/Nov/2018:16:20:49"{a[$1]++}END{for(v in a)print v,a[v]}' $LOG_FILE |sort -k2 -nr|head -10 echo "----------------------" echo "统计访问最多的10个页面" awk '{a[$7]++}END{print "PV:",length(a);for(v in a){if(a[v]>10)print v,a[v]}}' $LOG_FILE |sort -k2 -nr echo "----------------------" echo "统计访问页面状态码数量" awk '{a[$7" "$9]++}END{for(v in a){if(a[v]>5)print v,a[v]}}'7、查看网卡实时流量脚本#!/bin/bash NIC=$1 echo -e " In ------ Out" while true; do OLD_IN=$(awk '$0~"'$NIC'"{print $2}' /proc/net/dev) OLD_OUT=$(awk '$0~"'$NIC'"{print $10}' /proc/net/dev) sleep 1 NEW_IN=$(awk '$0~"'$NIC'"{print $2}' /proc/net/dev) NEW_OUT=$(awk '$0~"'$NIC'"{print $10}' /proc/net/dev) IN=$(printf "%.1f%s" "$((($NEW_IN-$OLD_IN)/1024))" "KB/s") OUT=$(printf "%.1f%s" "$((($NEW_OUT-$OLD_OUT)/1024))" "KB/s") echo "$IN $OUT" sleep 1 done8、服务器系统配置初始化脚本#/bin/bash # 设置时区并同步时间 ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime if ! crontab -l |grep ntpdate &>/dev/null ; then (echo "* 1 * * * ntpdate time.windows.com >/dev/null 2>&1";crontab -l) |crontab fi # 禁用selinux sed -i '/SELINUX/{s/permissive/disabled/}' /etc/selinux/config # 关闭防火墙 if egrep "7.[0-9]" /etc/redhat-release &>/dev/null; then systemctl stop firewalld systemctl disable firewalld elif egrep "6.[0-9]" /etc/redhat-release &>/dev/null; then service iptables stop chkconfig iptables off fi # 历史命令显示操作时间 if ! grep HISTTIMEFORMAT /etc/bashrc; then echo 'export HISTTIMEFORMAT="%F %T `whoami` "' >> /etc/bashrc fi # SSH超时时间 if ! grep "TMOUT=600" /etc/profile &>/dev/null; then echo "export TMOUT=600" >> /etc/profile fi # 禁止root远程登录 sed -i 's/#PermitRootLogin yes/PermitRootLogin no/' /etc/ssh/sshd_config # 禁止定时任务向发送邮件 sed -i 's/^MAILTO=root/MAILTO=""/' /etc/crontab # 设置最大打开文件数 if ! grep "* soft nofile 65535" /etc/security/limits.conf &>/dev/null; then cat >> /etc/security/limits.conf << EOF * soft nofile 65535 * hard nofile 65535 EOF fi # 系统内核优化 cat >> /etc/sysctl.conf << EOF net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_max_tw_buckets = 20480 net.ipv4.tcp_max_syn_backlog = 20480 net.core.netdev_max_backlog = 262144 net.ipv4.tcp_fin_timeout = 20 EOF # 减少SWAP使用 echo "0" > /proc/sys/vm/swappiness # 安装系统性能分析工具及其他 yum install gcc make autoconf vim sysstat net-tools iostat if9、监控 100 台服务器磁盘利用率脚本#!/bin/bash HOST_INFO=host.info for IP in $(awk '/^[^#]/{print $1}' $HOST_INFO); do USER=$(awk -v ip=$IP 'ip==$1{print $2}' $HOST_INFO) PORT=$(awk -v ip=$IP 'ip==$1{print $3}' $HOST_INFO) TMP_FILE=/tmp/disk.tmp ssh -p $PORT $USER@$IP 'df -h' > $TMP_FILE USE_RATE_LIST=$(awk 'BEGIN{OFS="="}/^\/dev/{print $NF,int($5)}' $TMP_FILE) for USE_RATE in $USE_RATE_LIST; do PART_NAME=${USE_RATE%=*} USE_RATE=${USE_RATE#*=} if [ $USE_RATE -ge 80 ]; then echo "Warning: $PART_NAME Partition usage $USE_RATE%!" fi done done

linux突然所有命令都失效了，显示bash: xxxxx: command not found 今天登陆了一台日本的服务器配置OCI的，然后修改了下 /etc/profile 文件，由地方弄错了，然后就出现了，输入什么命令都是 command not found。想要重启 reboot 不行，ls 也不行。出现这个问题是因为系统的环境变量没有正确配置造成的，造成这个原因有很多，比如系统升级，比如不正当操作。解决的方式有两种。1、直接在linux命令行界面输入如下，然后回车（导入环境变量，以及shell常见的命令的存放地址）：export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin2、如果系统所有命令都不能使用时，还可以使用绝对命令vi打开profile，想William这情况的话，把刚才改了的有问题的地方全删了就可以了。（其实，如果这里有问题的地方没删除或者说没有改成正确的话，即使用了第一种方法，等会你退出登陆以后，再进来还是那种not found的情况的，所以说这里一定是要改的）/bin/vi /etc/profile在系统的配置文件里添加环境变量地址export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin