记录3——快速检查机器的各种实时错误日志并且及时定位问题

任务需求：需要把安装软件后的系统检查所有相关日志记录，尤其需要注意错误日志
检测步骤：先确定需要检查的各种日志分类和日志所在目录，再检查各种日志的错误或者警告信息，可以制定检查某个目录也可以一起全部检查

该脚本还有有很多可以改进的地方（如有不好地方尽情指正）

#!/bin/bash
#       This program shows the user's choice
# History:
# Author :Murphy Ma
# Create: 2014/12/19
# Modify: 2014/12/30

os_path=/var/log/messages
fds_path=/var/sog/logs/fdsserver/FDS-PL.log
pm_path=/var/sog/logs/pm/pm-PL.log
dteagent_path=/var/sog/logs/dteagent/dteagent.log
backup_path=/var/sog/logs/backup/backup.log
tomcat_path=/var/sog/logs/tomcat/tomcat.log
fdsweb_path=/var/sog/logs/www/fdsweb.log

function osLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/os_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $os_path"            ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $os_path | grep -ni $findMessage  >> $logpath`
}

function fdsLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/fds_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $fds_path"            ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $fds_path | grep -ni $findMessage  >> $logpath`
}

function pmLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/pm_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $pm_path"            ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $pm_path | grep -ni $findMessage  >> $logpath`
}

function dteagentLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/dteagent_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $dteagent_path"      ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $dteagent_path | grep -ni $findMessage  >> $logpath`
}

function backupLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/backup_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $backup_path"        ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $backup_path | grep -ni $findMessage  >> $logpath`
}

function tomcatLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/backup_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $tomcat_path"        ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $tomcat_path | grep -ni $findMessage  >> $logpath`
}

function fdswebLog(){
[ -d /var/tmp/errorLogCheck ] || mkdir -p /var/tmp/errorLogCheck
datetime=`date +"%Y%m%d%H%M%S"`
logpath="/var/tmp/errorLogCheck/backup_"$datetime".log"
echo "===============Start time:" `date +"%Y-%m-%d %T"` "===============" >> $logpath
echo "===============log file is :" $fdsweb_path"        ===============" >> $logpath
echo "===============log file is located in :" $logpath
log_error_tmp=`cat $fdsweb_path | grep -ni $findMessage  >> $logpath`
}

echo "--------------you can choose below item --------------"
printf "all             ------>  \n print all logs below"
echo "**************         OS log           **************"
printf "os              ------> /var/log/messages \n"
echo " "
echo "**************         PG log           **************"
printf "fds             ------> $fds_path \n"
printf "pm              ------> $pm_path \n"
printf "dteagent        ------> $dteagent_path \n"
printf "backup          ------> $backup_path \n"
printf "tomcat          ------> $tomcat_path \n"
printf "fdsweb          ------> $fdsweb_path \n"
printf "exit            ------>  exit this script \n"

until [ "$item" == "exit" ]
do
read -p "input a chect item: " item
echo "this round is to check logfile: " $item
findMessage="error"
case $item in
"all")
osLog
fdsLog
pmLog
dteagentLog
backupLog
tomcatLog
fdswebLog
;;
"os")
osLog
;;
"fds")
fdsLog
;;
"pm")
pmLog
;;
"dteagent")
dteagentLog
;;
"backup")
backupLog
;;
"tomcat")
tomcatLog
;;
"fdsweb")
fdswebLog
;;
"*")
echo "Usage $item {all|os|fds|pm|dteagent|backup|tomcat|fdsweb}"
;;
esac
done