Shell程序实例集锦一

Shell程序实例集锦一

前言：下面这些hell实例都是自己写的或者用过的一些Shell小程序。整理整理。    ――Ajian 1、删除B文件中和A文件相同的内容 #!/bin/sh # Ajian for file in `cat a.list | cut -d. -f1` do sed -i '/'$file'/d' b.list done 2、根据文件名的前四位创建二级目录 #!/bin/sh #Ajian for dir in `cat dir.list` do dir1=`echo $dir | cut -c1-2` dir2=`echo $dir | cut -c3-4` if [ ! -d "$dir1/$dir2" ]; then        mkdir -p "$dir1/$dir2" fi done 3、查看网卡流量 #!/bin/bash #netflood #Ajian while : ; do        time=`date +%m"-"%d" "%k":"%M`        day=`date +%m"-"%d`        rx_before=`ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-`        tx_before=`ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-`        sleep 2        rx_after=`ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-`        tx_after=`ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-`        rx_result=$[(rx_after-rx_before)/256]        tx_result=$[(tx_after-tx_before)/256]        echo "$time Now_In_Speed: "$rx_result"kbps Now_OUt_Speed: "$tx_result"kbps"        sleep 2 done 4、系统状况监控 #!/bin/sh #statistic.sh #Ajian IP=192.1681.41 top -n 2| grep "Cpu" >>./data/cpu.txt free -m | grep "Mem" >> ./data/mem.txt df -k | grep "sda1" >> ./data/drive_sda1.txt #df -k | grep sda2 >> ./data/drive_sda2.txt df -k | grep "/mnt/storage_0" >> ./data/mnt_storage_0.txt df -k | grep "/mnt/storage_pic" >> ./data/mnt_storage_pic.txt time=`date +%m"."%d" "%k":"%M` connect=`netstat -na | grep "172.16.20.5:80" | wc -l` echo "$time  $connect" >> ./data/connect_count.txt 5、系统服务及系统状况分析 #!/bin/sh #server ################################# #modify by ajian #function: It is convenient to restart some servers and reduce the wasted time. #DATE:  2007-7-2 ################################# #路径配置区 APACHEPATH="" SMB_LOCAL_PATH1="" SMB_REMOTE_PATH1="" SMB_LOCAL_PATH2="" SMB_REMOTE_PATH2="" ################################# #应用配置区 SMBUSER="" SMBPASS="" SMB_UID= SMB_GID= ################################# case $1 in        "apache")                if [ $2 = "start" ]                then                        echo "starting apache ..."                        $APACHEPATH/apachectl start                        echo "apache is started."                        pidof httpd                elif [ $2 = "stop" ]                then                        echo "stopping apache ..."                        $APACHEPATH/apachectl stop                        echo "apache is stopped."                elif [ $2 = "restart" ]                then                        echo "restarting apache ..."                        $APACHEPATH/apachectl stop                        sleep 5                        $APACHEPATH/apachectl start                        echo "apache is restarted."                        pidof httpd                else                        echo "apache's $2 is error."                fi                ;;        "smb")                if [ $2 = "remount" ]                then                        echo "remounting smbfs..."                        umount -f $SMB_LOCAL_PATH1                        umount -f $SMB_LOCAL_PATH2            echo "umount is finished."                        sleep 5                        mount -t smbfs -o username=$SMBUSER,password=$SMBPASS,ui d=$SMB_UID,gid=$SMB_GID $SMB_REMOTE_PATH1 $SMB_LOCAL_PATH1                        mount -t smbfs -o username=$SMBUSER,password=$SMBPASS,ui d=$SMB_UID,gid=$SMB_GID $SMB_REMOTE_PATH2 $SMB_LOCAL_PATH2                        echo "mount is finished."                        df -h                elif [ $2 = "mount" ]                then                        mount -t smbfs -o username=$SMBUSER,password=$SMBPASS,ui d=$SMB_UID,gid=$SMB_GID $SMB_REMOTE_PATH1 $SMB_LOCAL_PATH1                        mount -t smbfs -o username=$SMBUSER,password=$SMBPASS,ui d=$SMB_UID,gid=$SMB_GID $SMB_REMOTE_PATH2 $SMB_LOCAL_PATH2                        echo "mount is finished."                        df -h                else                        echo "smb's $2 is error."                fi                ;;        "all")                echo "restart apache and remount..."                $APACHEPATH/apachectl stop        sleep 5                umount -f $SMB_LOCAL_PATH1                umount -f $SMB_LOCAL_PATH2                sleep 5                mount -t smbfs -o username=$SMBUSER,password=$SMBPASS,uid=$SMB_U ID,gid=$SMB_GID $SMB_REMOTE_PATH1 $SMB_LOCAL_PATH1                mount -t smbfs -o username=$SMBUSER,password=$SMBPASS,uid=$SMB_U ID,gid=$SMB_GID $SMB_REMOTE_PATH2 $SMB_LOCAL_PATH2                echo "mount is finished."                df -h                $APACHEPATH/apachectl start                echo "apache is restarted."                sleep 5                pidof httpd                ;;    "status")        if [ $2 = "grather" ]        then            echo "Gather the status of the computer ....."            /movivi/status.sh            echo "Gather is finished."        elif [ $2 = "analyze"  ]        then            echo "analyze the status.ch ......"            /movivi/analyze.sh            cat /movivi/data/sumary.txt        fi        ;;        *)                echo "The method of using the script."                echo ""        echo "  server apache stop      means:  关闭apache."                echo "  server apache start     means:  启动apache."                                echo "  server apache restart   means:  重启apache."                echo "  server remount            means:  关闭Mount点再挂载."        echo "  server mount              means:  直接挂载Mount点."                echo "  server all                    means:  Include all of above."                echo "  server status gather     means:  收集系统信息."        echo "  server status analyze    means:  分析处理并显示系统信息."                echo "  "                echo ""                ;; esac 6、服务器采样程序（主要用于邮件发送报警 格式问题） #!/bin/sh # Create By : Ajian # file: watch.sh # Time: 2007-10-31 ############################ INPUT=/root/message TIME=`date +%m"."%d" "%k":"%M` echo "###################################################################################################" >> $INPUT echo "###################################################################################################" >> $INPUT echo "采样时间点: $TIME" >> $INPUT echo "////////////////////////////////////" >>  $INPUT echo "CPU使用情况:" >> $INPUT top -n 3 -b  | grep "Cpu" | awk '{print $1 $2 $3 $4 $5}'>> $INPUT echo "////////////////////////////////////" >>  $INPUT echo "内存使用情况:(单位M)" >> $INPUT free -m >> $INPUT echo "////////////////////////////////////" >>  $INPUT echo "服务器连接数:" >> $INPUT echo "Web连接     :`netstat -na | grep ":80" | wc -l`" >> $INPUT echo "TIMEWAIT连接:`netstat -na | grep ":80" | grep "TIME_WAIT" | wc -l`" >> $INPUT echo "数据库连接:`netstat -na | grep "3306" | wc -l`" >> $INPUT echo "////////////////////////////////////" >>  $INPUT echo "Apache 进程数:`ps aux | grep httpd | wc -l`" >> $INPUT echo "注：采样十分钟取一次，一小时发送一次" >> $INPUT