Shell Programming and Scripting

 #!/bin/bash
#***************************************
 
ssh user@remote_server
if [ $? -eq 0 ];
then
echo "connection established successfully" >> path/to/log/file #(this log file is not being created nor is anything being inserted even if I create it manually)#
exit 0
else
echo "connection unsuccessful" >> path/to/log/file
fi
sh /path/to/remote/scripts/script_name
if [ $? -eq 0 ];
then
echo "script executed successfully" >> path/to/log/file #(this log file is not being created nor is anything being inserted even if I create it manually)#
else
echo "script not executed" >> path/to/log/file
fi
 exit

HNAME=$(ssh -o StrictHostKeyChecking=no username@Server_address "/bin/uname")
if [ -n "${HNAME}" ];then
   echo "connection established successfully" > path/to/log/file
   ssh -o StrictHostKeyChecking=no username@Server_address << EOF >> path/to/log/file
    sh /path/to/remote/scripts/script_name > /dev/null 2>&1;
   if [ $? -eq 0 ];then
      echo "script executed successfully"
   else
       echo "script not executed"
   fi
EOF
else
     echo "connection unsuccessful" > path/to/log/file
fi