I am trying to run a Python program to see if the screen program is running. If it is, then the program should not run the rest of the code. This is what I have and it's not working:
#!/usr/bin/python import os var1 = os.system ('screen -r > /root/screenlog/screen.log') fd = open("/root/screenlog/screen.log") content = fd.readline() while content: if content == "There is no screen to be resumed.": os.system ('/etc/init.d/tunnel.sh') print "The tunnel is now active." else: print "The tunnel is running." fd.close()
I know there are probably several things here that don't need to be and quite a few that I'm missing. I will be running this program in cron.
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1:What is sys/user.h used for?
from subprocess import Popen, PIPE def screen_is_running(): out = Popen("screen -list",shell=True,stdout=PIPE).communicate() return not out.startswith("This room is empty")
2:symlink files newer than X age, then later remove symlink once file ages?
var1 = os.system ('screen -r 2> /root/screenlog/screen.log')
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