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| #!/bin/bash | ||
| ##---------- Author : Sadashiva Murthy M ----------------------------------------------------## | ||
| ##---------- Blog site : http://simplylinuxfaq.blogspot.in ----------------------------------## | ||
| ##---------- Github page : https://github.com/SimplyLinuxFAQ/health-check-script ------------## | ||
| ##---------- Purpose : To quickly check and report health status in a linux systems.---------## | ||
| ##---------- Tested on : RHEL7/6/5/, SLES12/11, Ubuntu14, Mint16, Boss6(Debian) variants.----## | ||
| ##---------- Updated version : v1.0 (Updated on 22th-June-2017) -----------------------------## | ||
| ##-----NOTE: This script requires root privileges, otherwise you could run the script -------## | ||
| ##---- as a sudo user who got root privileges. ----------------------------------------------## | ||
| ##----------- "sudo /bin/bash <ScriptName>" -------------------------------------------------## | ||
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| S="************************************" | ||
| D="-------------------------------------" | ||
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| MOUNT=$(mount|egrep -iw "ext4|ext3|xfs|gfs|gfs2|btrfs"|sort -u -t' ' -k1,2) | ||
| FS_USAGE=$(df -PTh|egrep -iw "ext4|ext3|xfs|gfs|gfs2|btrfs"|sort -k6n) | ||
| IUSAGE=$(df -PThi|egrep -iw "ext4|ext3|xfs|gfs|gfs2|btrfs"|sort -k6n) | ||
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| #--------Checking the availability of sysstat package..........# | ||
| if [ ! -x /usr/bin/mpstat ] | ||
| then | ||
| printf "\nError : Either \"mpstat\" command not available OR \"sysstat\" package is not properly installed. Please make sure this package is installed and working properly!, then run this script.\n\n" | ||
| exit 1 | ||
| fi | ||
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| echo -e "$S Health Status Report $S" | ||
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| #------Print hostname, OS architecture and kernel version-----# | ||
| echo -e "\nOperating System Details" | ||
| echo -e "$D" | ||
| printf "Hostname\t\t\t\t :" $(hostname -f > /dev/null 2>&1) && printf " $(hostname -f)" || printf " $(hostname -s)" | ||
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| if [ -e /usr/bin/lsb_release ] | ||
| then | ||
| echo -e "\nOperating System\t\t\t :" $(lsb_release -d|awk -F: '{print $2}'|sed -e 's/^[ \t]*//') | ||
| else | ||
| echo -e "\nOperating System\t\t\t :" $(cat /etc/system-release) | ||
| fi | ||
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| echo -e "Kernel Version\t\t\t\t :" $(uname -r) | ||
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| printf "OS Architecture\t\t\t\t :" $(arch | grep x86_64 2>&1 > /dev/null) && printf " 64 Bit OS\n" || printf " 32 Bit OS\n" | ||
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| #--------Print system uptime-------# | ||
| UPTIME=$(uptime) | ||
| echo $UPTIME|grep day 2>&1 > /dev/null | ||
| if [ $? != 0 ] | ||
| then | ||
| echo $UPTIME|grep -w min 2>&1 > /dev/null && echo -e "System Uptime \t\t\t\t : "$(echo $UPTIME|awk '{print $2" by "$3}'|sed -e 's/,.*//g')" minutes" || echo -e "System Uptime \t\t\t\t : "$(echo $UPTIME|awk '{print $2" by "$3" "$4}'|sed -e 's/,.*//g')" hours" | ||
| else | ||
| echo -e "System Uptime \t\t\t\t :" $(echo $UPTIME|awk '{print $2" by "$3" "$4" "$5" hours"}'|sed -e 's/,//g') | ||
| fi | ||
| echo -e "Current System Date & Time \t\t : "$(date +%c) | ||
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| #--------Check for any read-only file systems--------# | ||
| echo -e "\nChecking For Read-only File System[s]" | ||
| echo -e "$D" | ||
| echo "$MOUNT"|grep -w \(ro\) && echo -e "\n.....Read Only file system[s] found"|| echo -e ".....No read-only file system[s] found. " | ||
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| #--------Check for currently mounted file systems--------# | ||
| echo -e "\n\nChecking For Currently Mounted File System[s]" | ||
| echo -e "$D$D" | ||
| echo "$MOUNT"|column -t | ||
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| #--------Check disk usage on all mounted file systems--------# | ||
| echo -e "\n\nChecking For Disk Usage On Mounted File System[s]" | ||
| echo -e "$D$D" | ||
| echo -e "( 0-90% = OK/HEALTHY, 90-95% = WARNING, 95-100% = CRITICAL )" | ||
| echo -e "$D$D" | ||
| echo -e "Mounted File System[s] Utilization (Percentage Used):\n" | ||
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| echo "$FS_USAGE"|awk '{print $1 " "$7}' > /tmp/s1.out | ||
| echo "$FS_USAGE"|awk '{print $6}'|sed -e 's/%//g' > /tmp/s2.out | ||
| > /tmp/s3.out | ||
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| for i in $(cat /tmp/s2.out); | ||
| do | ||
| { | ||
| if [ $i -ge 95 ]; | ||
| then | ||
| echo -e $i"% ------------------Critical" >> /tmp/s3.out; | ||
| elif [[ $i -ge 90 && $i -lt 95 ]]; | ||
| then | ||
| echo -e $i"% ------------------Warning" >> /tmp/s3.out; | ||
| else | ||
| echo -e $i"% ------------------Good/Healthy" >> /tmp/s3.out; | ||
| fi | ||
| } | ||
| done | ||
| paste -d"\t" /tmp/s1.out /tmp/s3.out|column -t | ||
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| #--------Check for any zombie processes--------# | ||
| echo -e "\n\nChecking For Zombie Processes" | ||
| echo -e "$D" | ||
| ps -eo stat|grep -w Z 1>&2 > /dev/null | ||
| if [ $? == 0 ] | ||
| then | ||
| echo -e "Number of zombie process on the system are :" $(ps -eo stat|grep -w Z|wc -l) | ||
| echo -e "\n Details of each zombie processes found " | ||
| echo -e " $D" | ||
| ZPROC=$(ps -eo stat,pid|grep -w Z|awk '{print $2}') | ||
| for i in $(echo "$ZPROC") | ||
| do | ||
| ps -o pid,ppid,user,stat,args -p $i | ||
| done | ||
| else | ||
| echo -e "No zombie processes found on the system." | ||
| fi | ||
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| #--------Check Inode usage--------# | ||
| echo -e "\n\nChecking For INode Usage" | ||
| echo -e "$D$D" | ||
| echo -e "( 0-90% = OK/HEALTHY, 90-95% = WARNING, 95-100% = CRITICAL )" | ||
| echo -e "$D$D" | ||
| echo -e "INode Utilization (Percentage Used):\n" | ||
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| echo "$IUSAGE"|awk '{print $1" "$7}' > /tmp/s1.out | ||
| echo "$IUSAGE"|awk '{print $6}'|sed -e 's/%//g' > /tmp/s2.out | ||
| > /tmp/s3.out | ||
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| for i in $(cat /tmp/s2.out); | ||
| do | ||
| if [[ $i = *[[:digit:]]* ]]; | ||
| then | ||
| { | ||
| if [ $i -ge 95 ]; | ||
| then | ||
| echo -e $i"% ------------------Critical" >> /tmp/s3.out; | ||
| elif [[ $i -ge 90 && $i -lt 95 ]]; | ||
| then | ||
| echo -e $i"% ------------------Warning" >> /tmp/s3.out; | ||
| else | ||
| echo -e $i"% ------------------Good/Healthy" >> /tmp/s3.out; | ||
| fi | ||
| } | ||
| else | ||
| echo -e $i"% (Inode Percentage details not available)" >> /tmp/s3.out | ||
| fi | ||
| done | ||
| paste -d"\t" /tmp/s1.out /tmp/s3.out|column -t | ||
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| #--------Check for RAM Utilization--------# | ||
| MEM_DETAILS=$(cat /proc/meminfo) | ||
| echo -e "\n\nChecking Memory Usage Details" | ||
| echo -e "$D" | ||
| echo -e "Total RAM (/proc/meminfo) : "$(echo "$MEM_DETAILS"|grep MemTotal|awk '{print $2/1024}') "MB OR" $(echo "$MEM_DETAILS"|grep MemTotal|awk '{print $2/1024/1024}') "GB" | ||
| echo -e "Used RAM in MB : "$(free -m|grep -w Mem:|awk '{print $3}')", in GB : "$(free -m|grep -w Mem:|awk '{print $3/1024}') | ||
| echo -e "Free RAM in MB : "$(echo "$MEM_DETAILS"|grep -w MemFree|awk '{print $2/1024}')" , in GB : "$(echo "$MEM_DETAILS"|grep -w MemFree |awk '{print $2/1024/1024}') | ||
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| #--------Check for SWAP Utilization--------# | ||
| echo -e "\n\nChecking SWAP Details" | ||
| echo -e "$D" | ||
| echo -e "Total Swap Memory in MB : "$(echo "$MEM_DETAILS"|grep -w SwapTotal|awk '{print $2/1024}')", in GB : "$(echo "$MEM_DETAILS"|grep -w SwapTotal|awk '{print $2/1024/1024}') | ||
| echo -e "Swap Free Memory in MB : "$(echo "$MEM_DETAILS"|grep -w SwapFree|awk '{print $2/1024}')", in GB : "$(echo "$MEM_DETAILS"|grep -w SwapFree|awk '{print $2/1024/1024}') | ||
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| #--------Check for Processor Utilization (current data)--------# | ||
| echo -e "\n\nChecking For Processor Utilization" | ||
| echo -e "$D" | ||
| echo -e "Manufacturer: "$(dmidecode -s processor-manufacturer|uniq) | ||
| echo -e "Processor Model: "$(dmidecode -s processor-version|uniq) | ||
| if [ -e /usr/bin/lscpu ] | ||
| then | ||
| { | ||
| echo -e "No. Of Processor(s) :" $(lscpu|grep -w "Socket(s):"|awk -F: '{print $2}') | ||
| echo -e "No. of Core(s) per processor :" $(lscpu|grep -w "Core(s) per socket:"|awk -F: '{print $2}') | ||
| } | ||
| else | ||
| { | ||
| echo -e "No. Of Processor(s) Found :" $(grep -c processor /proc/cpuinfo) | ||
| echo -e "No. of Core(s) per processor :" $(grep "cpu cores" /proc/cpuinfo|uniq|wc -l) | ||
| } | ||
| fi | ||
| echo -e "\nCurrent Processor Utilization Summary :\n" | ||
| mpstat|tail -2 | ||
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| #--------Check for load average (current data)--------# | ||
| echo -e "\n\nChecking For Load Average" | ||
| echo -e "$D" | ||
| echo -e "Current Load Average : $(uptime|grep -o "load average.*"|awk '{print $3" " $4" " $5}')" | ||
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| #------Print most recent 3 reboot events if available----# | ||
| echo -e "\n\nMost Recent 3 Reboot Events" | ||
| echo -e "$D$D" | ||
| last -x 2> /dev/null|grep reboot 1> /dev/null && /usr/bin/last -x 2> /dev/null|grep reboot|head -3 || echo -e "No reboot events are recorded." | ||
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| #------Print most recent 3 shutdown events if available-----# | ||
| echo -e "\n\nMost Recent 3 Shutdown Events" | ||
| echo -e "$D$D" | ||
| last -x 2> /dev/null|grep shutdown 1> /dev/null && /usr/bin/last -x 2> /dev/null|grep shutdown|head -3 || echo -e "No shutdown events are recorded." | ||
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| #--------Print top 5 most memory consuming resources---------# | ||
| echo -e "\n\nTop 5 Memory Resource Hog Processes" | ||
| echo -e "$D$D" | ||
| ps -eo pmem,pcpu,pid,ppid,user,stat,args | sort -k 1 -r | head -6|sed 's/$/\n/' | ||
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| #--------Print top 5 most CPU consuming resources---------# | ||
| echo -e "\n\nTop 5 CPU Resource Hog Processes" | ||
| echo -e "$D$D" | ||
| ps -eo pcpu,pmem,pid,ppid,user,stat,args | sort -k 1 -r | head -6|sed 's/$/\n/' |