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==== Process Check script for cron ====

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

==== First ====

<code bash | 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
</code>

==== Second ====

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


<code bash | 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
</code>

==== Third ====


This is in python :)

<code 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'])
    
</code>