【www.bbyears.com--linux】
word-wrap: break-word; margin: 5px 0px; color: rgb(0, 0, 0); font-family: " sans="" font-size:="" font-style:="" font-variant-ligatures:="" a="" href="/fw/photo.html" target="_blank" :="" font-weight:="" letter-spacing:="" orphans:="" text-align:="" text-indent:="" text-transform:="" white-space:="" widows:="" word-spacing:="" -webkit-text-stroke-width:="">核心代码：
代码如下
#!/bin/bash
check_process(){
tolprocess=`psauxf|grepDisplayMa[nager]|wc-l`
#if [ "$tolprocess" -lt "1" ];then
if["$tolprocess"-ge"1"];then
echo'process ok'
else
echo'fail'
fi
}
check_log(){
if[ -e/etc/syslog-ng/syslog-ng.conf ];then
conlog=`cat'/etc/syslog-ng/syslog-ng.conf'|grep"10.70.72.253"|wc-l`
if["$conlog"-ge"1"];then
echo'syslog-ng ok'
fi
elif[ -e/etc/syslog.conf ];then
conlog=`cat'/etc/syslog.conf'|grep"10.70.72.253"|wc-l`
if["$conlog"-ge"1"];then
echo'syslog ok'
fi
else
echo'log not find or error'
fi
}
check_cpuidle(){
mincpu=`sar -u 2 10|grepall|awk'{print $NF}'|sort-nr|tail-1`
if[ $(echo"${mincpu} < 20"|bc) = 1 ];then
#if [ "$mincpu" -le "20" ];then
echo'cpu idle is less than 20% ,please check'
else
echo'cpu idle is more than 20%, it is ok '
fi
}
check_mem(){
vmstat 2 10
}
check_disk(){
chkdsk=`fdisk-l|egrep'failed|unsynced|unavailable'|wc-l`
if["$chkdsk"-ge"1"];then
echo'fdisk check ok '
else
echo'fdisk check find error,please check your disk '
fi
}
check_io(){
util=`sar -d 2 10|egrep-v'x86|^$|await'|awk'{print $NF}'|sort-nr|tail-1`
await=`sar -d 2 10|egrep-v'x86|^$|await'|awk'{print $(NF-2)}'|sort-nr|tail-1`
if[ $(echo"${util} < 80"|bc) = 1 ] && [ $(echo"${await} < 100"|bc) = 1 ] ;then
echo'disk io check is fine'
else
echo'disk io use too high '
fi
}
check_swap(){
tolswap=`cat/proc/meminfo|grepSwapTotal|awk'{print $2}'`
#awk '/SwapTotal/{total=$2}/SwapFree/{free=$2}END{print (total-free)/1024}' /proc/meminfo
useswap=`awk'/SwapTotal/{total=$2}/SwapFree/{free=$2}END{print (total-free)}'/proc/meminfo`
util=`awk'BEGIN{printf "%.1f\n",'$useswap'/'$tolswap'}'`
if[ $(echo"${util} < 0.3"|bc) = 1 ] || [ $(echo"${useswap} < 1024"|bc) = 1 ] ;then
echo'swap use is ok '
else
echo"useswap: $useswap kb, swap util is $util"
fi
}
check_dmesg(){
chkdm=`dmesg |egrep'scsi reset|file system full'|wc-l`
if["$chkdm"-ge"1"];then
echo'dmesg test ok '
else
echo'dmesg check find error '
fi
}
check_boot(){
chkdm=`cat/var/log/boot.msg|egrep'scsi reset|file system full'|wc-l`
if["$chkdm"-ge"1"];then
echo'boot check fine '
else
echo'boot check find error '
fi
}
check_inode(){
maxinode=`df-i|awk'{print $5}'|egrep-v'IUse|-'|sed's/%//g'|sort-nr|head-1`
if[ $(echo"${maxinode} < 80"|bc) = 1 ];then
echo'inode check ok '
else
echo'inode used more than 80% '
fi
}
check_df(){
dfuse=`df-HT|awk'{print $6}'|grep-vUse|sed's/%//g'|sort-nr|head-1`
if[ $(echo"${dfuse} < 80"|bc) = 1 ];then
echo'disk used is less than 80% ,it is ok !'
elif[ $(echo"${dfuse} > 80"|bc) = 1 ] && [ $(echo"${dfuse} < 90"|bc) = 1 ];then
echo'warning , disk used more than 80% and less than 90% '
else
echo' Critical, disk used more than 90% '
fi
}
echo'################### check process ###################'
check_process
echo'################### check syslog ####################'
check_log
echo'################### check cpuidle ###################'
check_cpuidle
echo'################### echo memory stat ################'
check_mem
echo'################### check fdisk #####################'
check_disk
echo'################### check io used ###################'
check_io
echo'################### check swap used #################'
check_swap
echo'################### check dmesg #####################'
check_dmesg
echo'################### check inode #####################'
check_inode
echo'################### check disk used #################'
check_df
保存为/system/check_linux.sh