Shell Programming and Scripting

 
 ssh  -q server1 'bash -s<<EOF>>log.txt
        set -vx
        ps -ef | grep bash | awk '{print $1}'
        a="`ps -ef | grep bash | awk '{print $1}'`"
        echo "\$a"
        EOF

for i in server1 server2 server 3
do
pid=$(ssh $i ps -ef |grep "bash" | awk '{ print $2 }')
echo $pid
##ssh $i kill $pid
done

ssh -q username@servername "kill \$(ps -ef | grep "bash" | awk '{ print \$2}')"

ssh  server1 <<-EOF         
set -vx        
 ps -ef | grep bash | awk '{print $1}'        
 a="`ps -ef | grep bash | awk '{print $1}'`"        
 echo "\$a"        
 EOF

a=$(ssh server1...)