life is short - you need Python!

I work on a project where I have written 20+ crawlers and the crawlers are running 24/7 (with good amount of sleep). Sometimes, I need to update / restart the server. Then I have to start all the crawlers again. So, I have written a script that will control all the crawlers. It will first check if the crawler is already running, and if not, then it will start the crawler and the crawler will run in the background. I also saved the pid of all the crawlers in a text file so that I can kill a particular crawler immediately when needed. Here is my code : import shlex from subprocess import Popen, PIPE site_dt = {'Site1 Name' : ['site1_crawler.py', 'site1_crawler.out'],  'Site2 Name' : ['site2_crawler.py', 'site2_crawler.out']} location = "/home/crawler/" pidfp = open('pid.txt', 'w') def is_running(pname): p1 = Popen(["ps", "ax"], stdout=PIPE) p2 = Popen(["grep", pname...

So, you have a server to which you connect remotely, upload a python script and want to run it and logout from the server keeping the program running. If you frequently work with spiders, you surely want to do it. But how to do it? For example if your script's name is script.py, then the command is: nohup python script.py & And sometimes you may be interested to see the output is that being generated. Then you should view the nohup.out file! This command can be useful: tail -f nohup.out So run the program in background and enjoy your time :-)