This script will run a daemon and will clear any log mentioned in variable cmd1 every 10 seconds. Two things:
1. You need to install python-daemon to run this.
https://pypi.python.org/pypi/python-daemon/
2. It is not a simple python script, so you can't run it using ./mydaemon.py. You have to run it by using ./mydaemon.py start.
3. Again, you can't stop this script by "Ctrl + C" . You have to use ./mydaemon.py stop
4. Works with python 2.x
-------------------------------------------------------------------------------
#!/usr/bin/python
import time
import os
from daemon import runner
class App():
def __init__(self):
self.stdin_path = '/dev/null'
self.stdout_path = '/dev/tty'
self.stderr_path = '/dev/tty'
self.pidfile_path = '/tmp/foo.pid'
self.pidfile_timeout = 5
def run(self):
while True:
print "Going to clear log !! "
cmd1 = 'cat /dev/null > /var/log/mysqld.log'
os.system(cmd1)
time.sleep(10)
app = App()
daemon_runner = runner.DaemonRunner(app)
daemon_runner.do_action()
1. You need to install python-daemon to run this.
https://pypi.python.org/pypi/python-daemon/
2. It is not a simple python script, so you can't run it using ./mydaemon.py. You have to run it by using ./mydaemon.py start.
3. Again, you can't stop this script by "Ctrl + C" . You have to use ./mydaemon.py stop
4. Works with python 2.x
-------------------------------------------------------------------------------
#!/usr/bin/python
import time
import os
from daemon import runner
class App():
def __init__(self):
self.stdin_path = '/dev/null'
self.stdout_path = '/dev/tty'
self.stderr_path = '/dev/tty'
self.pidfile_path = '/tmp/foo.pid'
self.pidfile_timeout = 5
def run(self):
while True:
print "Going to clear log !! "
cmd1 = 'cat /dev/null > /var/log/mysqld.log'
os.system(cmd1)
time.sleep(10)
app = App()
daemon_runner = runner.DaemonRunner(app)
daemon_runner.do_action()
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