This script will check process if it is not running and will start the process if not running.

| proc_script.sh

#!/bin/bash
# check process
ps -ef | grep -v grep | grep 2200:localhost:22
# if not found - equals to 1, start it
if [ $? -eq 1 ]
then
ssh -f -N -R 2200:localhost:22 k2patel@71.245.248.138
echo "Process not running - Started"
else
echo “Process Running - do nothing”
fi

I made some changes as there is actually no need to equality check:

| proc_scriptjt.sh

#!/bin/bash
# check process
 
# if can parse the statement and watch the exit code
if [ "$(ps -ef | grep -v grep | grep 2200:localhost:22)" ]
then
ssh -f -N -R 2200:localhost:22 k2patel@71.245.248.138
echo "Process not running - Started"
else
echo “Process Running - do nothing”
fi

This is in python :)

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on Thu Aug  4 14:46:52 2011
 
@author: k2patel@hotmail.com
"""
 
import subprocess
import psutil
 
# reset running variable
running = 0
 
 
for proc in psutil.get_process_list():
    if proc.username == 'kpatel':
        ## Actual Command
        ## ssh -f -N -i /home/kpatel/.ssh/id_rsa -R 2200:localhost:22 k2patel@71.245.248.138
        ## Actual CMDLINE output
        ## ssh-f-N-i/home/kpatel/.ssh/id_rsa-R2200:localhost:22k2patel@71.245.248.138
        if proc.cmdline == (['ssh', '-f', '-N', '-i', '/home/kpatel/.ssh/id_rsa', '-R', '2200:localhost:22', 'k2patel@71.245.248.138']):
            running = 1
 
 
if running is 1:
    print "Process is running"
else:
    subprocess.call(['ssh', '-f', '-N', '-i', '/home/kpatel/.ssh/id_rsa', '-R', '2200:localhost:22', 'k2patel@71.245.248.138'])