Hi,

I need find some server is running or nor, if not I have to send a mail,

if I use

ps -ef | grep buyerserver1

I am getting pid etc etc...
I want validate with boolean value.. and send the mail.. how to do...

I use this:

the status to get the boolean expression with pgrep.

In your script

pgrep dhcpd > /dev/null

if ( $status = 0 ) then
echo "dhcpd is running"
else
echo "it is not running"
fi

pgrep is a GNU linux utility - if you do not have it then use

ps -ef | grep -q dhcpd
if [ $? -eq 0 ] ; then
  echo "dhcpd running"
else
  echo "dhcpd not running"
fi

with the above, there could be frequent chances where we do end up with process info that are not under specific user control.

ps -ef | grep <user> | grep -q dhcpd

whould be better written as:

ps -fu <user> | grep -q dhcpd