hi guys,
I have several servers and i want to make use of 1 of them to do some simple monitoring. It should be able check the process of other servers. What i did is

for SERVER in ${SERVERS}; do
echo "testing 2"
LINECOUNT= ssh ${SERVER} "ps -ef | grep -v grep |grep -v ${SERVER} | grep ${SERVICE} | wc -l"
echo "linecount is ${LINECOUNT}"
if [ ${LINECOUNT}=0 ]; then
echo " ${SERVICE} is not running."
else
echo " ${SERVICE} is running."
fi


I can run the ps command locally and able to get the result.
But the thing is when i use ssh to execute the remote command, it does return me the output like 1 or 0. What can i do? Thanks in advance

Regards

you could to the grep locally or the pipe to wc -l
i.e.
LINECOUNT=`ssh ${SERVER} "ps -ef | grep -v grep |grep -v ${SERVER} | grep ${SERVICE}" | wc -l`

hi nat, thanks for the reply. it works!!

hi nat, i have some other issues over here. I have this script over here but when i run it has this error
./remotechecking.sh: line 15: syntax error near unexpected token `fi'
./remotechecking.sh: line 15: ` fi'


#!/bin/bash -x
LOGFILE=/root/remotechecking.log
exec > ${LOGFILE}
exec 2>&1
SERVERS="testserver testserver2 testserver3"
for SERVER in ${SERVERS}; do
echo "in for loop ${SERVER}"
if [ SERVER="testserver" ]; then
#CHECK_APACHE
echo "in the 2nd loop "
CHECK_WONDERFUL()
fi
done

CHECK_APACHE() {
LINECOUNT=`ssh ${SERVER} "ps -ef | grep -v grep |grep -v ${SERVER} | grep apache" | wc -l`
if [ ${LINECOUNT}=1 ]; then
echo " apache on ${SERVER} is running."
else
echo " apache on ${SERVER} is not running."
fi
}

CHECK_WONDERFUL()
{
LINECOUNT=`ssh ${SERVER} "ps -ef | grep -v grep |grep -v ${SERVER} | grep wonderful" | wc -l`
if [ ${LINECOUNT}=1 ]; then
echo " wonderful on ${SERVER} is running."
else
echo " wonderful on ${SERVER} is not running."

sorry guys, i managed to figure this out. i need to put in a function infront of CHECK_WONDERFUL() and it will be then a method.

I have another question though. Although it can do the check but the log show which i create will show the banner when it ssh into other server, any ways to eliminate the banner?

hi guys..another question....when i run this script,

./remotechecking.sh: line 25: syntax error near unexpected token `done'
./remotechecking.sh: line 25: `done'

anywhere wrong with the else if condition?


9 for SERVER in ${SERVERS}; do
10 echo "in for loop ${SERVER}"
11 if [ ${SERVER}="sinp2ps11" ]; then
12 CHECK_P2PS
13 else if [ ${SERVER}="sinp2ps12" ]; then
14 CHECK_P2PS
15 else if [ ${SERVER}="sinp2ps13" ]; then
16 CHECK_P2PS
17 else if [ ${SERVER}="sinp2ps14" ]; then
18 CHECK_P2PS
19 else if [ ${SERVER}="sindacs" ]; then
20 CHECK_DACS
21 else if [ ${SERVER}="sindts" ]; then
22 CHECK_DTS
23 endif
24
25 done

2 things:

1. not every member here enjoyes his nick being nicked (subtle hint: i am one of them!)

2. why do you not use case ? (google for bash case if you dont know it yet ^^)

If that's shell cmds, its usually

if/then/elif/else/fi

with as many elif's as you need

BTW, isn't the old 'ps -ef | grep -v grep |grep -v something | grep somethingElse' reflex a 'pgrep -f somethingElse' replacement candidate?

Might the facility that you are looking for already exist?

Check out: [url=http://www.nagios.org]http://www.nagios.org/url]

If we abstract this requirement to its fullest possible extent, what we are left with is the need to explore the status of a particular set of hardware and/or the status of particular running processes on that hardware. This might well prove to be an existing-solution that you might be able to productively leverage or use...

Dictum Ne Agas -- "Do Not Do A Thing Already Done."

sorry nathanael

hi..i'm not really sure whether nagios covers solaris OS as well so at the meantime, i will be the script to capture what i want and at the same time hosts the finding on a apache server. How do i make use of the information captured to display on a website? shall i run the check on a cron job basis....and the website will extract the information from the log file? or shall i run the check and generate the website after that?

I have another question though. Although it can do the check but the log show which i create will show the banner when it ssh into other server, any ways to eliminate the banner?