Linux日常巡检脚本

关于linux环境的日常操作，我分享一点经验。

对于linux系统的日常监控运维，无非是一些内存、cpu、文件空间、进程、端口等等，一些列的运维，这些都可以通过简单的linux命令进行解决。

通过撰写shell脚本，对环境进行运维，一下简单介绍几种：

1.文件的操作

将文件放到远程机器	将远程文件达到本地	将远程文件删除
ftpPutFiles(){ remoteHost=$1 ftpUser=$2 ftpPwd=$3 remoteDir=$4 localDir=$5 localFiles=$6 ftp -i -v -n $remoteHost <<END_FTP user $ftpUser $ftpPwd binary lcd $localDir cd $remoteDir mput $localFiles bye END_FTP (sleep 2; echo $ftpUser;  sleep 2; echo $ftpPwd;  sleep 2; echo "chmod a+rwx $remoteDir/$localFiles";  sleep 2; echo "exit") | telnet $remoteHost 2>&1 | grep -v "getwinsize" }	ftpGetFiles(){ remoteHost=$1 ftpUser=$2 ftpPwd=$3 remoteDir=$4 remoteFiles=$5 localDir=$6 ftp -i -v -n $remoteHost <<END_FTP user $ftpUser $ftpPwd binary lcd $localDir cd $remoteDir mget $remoteFiles bye END_FTP }	ftpDelFiles(){ remoteHost=$1 ftpUser=$2 ftpPwd=$3 remoteDir=$4 remoteFiles=$5 ftp -i -v -n $remoteHost <<END_FTP user $ftpUser $ftpPwd binary cd $remoteDir mdel $remoteFiles bye END_FTP }

2.文件系统的检查脚本

checkFileSystem(){
   REMOTE_HOST=$1
   REMOTE_USER=$2
   REMOTE_PWD=$3

   FILE_SYSTEM_LOG=fileSystem.log

   (sleep 1; echo $REMOTE_USER;
    sleep 1; echo $REMOTE_PWD;
    sleep 1; echo "df -h|grep %|awk '{print $(NF-1),$NF}'|awk -F '%' '{if ($1 > 80) {print "$REMOTE_HOST",$1"%",$2}}'>$FILE_SYSTEM_LOG";
    sleep 1; echo "exit") | telnet $REMOTE_HOST 2>&1 | grep -v "getwinsize" >tmp.out

   ftpGetFiles $REMOTE_HOST $REMOTE_USER $REMOTE_PWD /home/$REMOTE_USER $FILE_SYSTEM_LOG . >/dev/null
   ftpDelFiles $REMOTE_HOST $REMOTE_USER $REMOTE_PWD /home/$REMOTE_USER $FILE_SYSTEM_LOG >/dev/null
   cat $FILE_SYSTEM_LOG >> $LOG_FILE
   rm $FILE_SYSTEM_LOG
}

3.进程端口的检查

checkRabbitMq(){
REMOTE_HOST=$1
REMOTE_USER=$2
REMOTE_PWD=$3
CHECK_MQ_SCRIPTS=checkMQ.sh

echo "oldIfs=$IFS; IFS=':'
processNums=\`ps -ef | grep rabbitmq | grep -v grep | wc -l \`
if [ $processNums -eq 1 ]; then
echo "hostname:" \`hostname\` ,"RabbitMq,process status:true"
else
echo "hostname:" \`hostname\`,"RabbitMq,process status:false"
fi
IFS=$oldIfs">>$CHECK_MQ_SCRIPTS

ftpPutFiles $REMOTE_HOST $REMOTE_USER $REMOTE_PWD /home/$REMOTE_USER . $CHECK_MQ_SCRIPTS >/dev/null

(sleep 1; echo $REMOTE_USER;
sleep 1; echo $REMOTE_PWD;
sleep 1; echo "sh $CHECK_MQ_SCRIPTS";
sleep 2; echo "rm $CHECK_MQ_SCRIPTS";
sleep 1; echo "exit") | telnet $REMOTE_HOST 2>&1 | grep -v "getwinsize" >tmp.out

cat tmp.out |grep RabbitMq >>$LOG_FILE
rm tmp.out
}