Script to monitor ntfrs service

service_name=r'Ntfrs'   # Give the exact service name

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import os

import sys

from subprocess import PIPE,Popen

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def alert(arg):

    sys.stderr.write("%d%d%d" % (arg, arg, arg))

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import ctypes

class disable_file_system_redirection:

    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection

    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

    def __enter__(self):

        self.old_value = ctypes.c_long()

        self.success = self._disable(ctypes.byref(self.old_value))

    def __exit__(self, type, value, traceback):

        if self.success:

            self._revert(self.old_value)

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import os

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def ecmd(command):

    class disable_file_system_redirection:

        _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection

        _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

        def __enter__(self):

            self.old_value = ctypes.c_long()

            self.success = self._disable(ctypes.byref(self.old_value))

        def __exit__(self, type, value, traceback):

            if self.success:

                self._revert(self.old_value)

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    with disable_file_system_redirection():

        obj = Popen(command, shell = True, stdout = PIPE, stderr = PIPE)

    out, err = obj.communicate()

    ret=obj.returncode

    if ret==0:

        if out:

            return out.strip()

        else:

            return ret

    else:

        if err:

            return err.strip()

        else:

            return ret

check_win = ecmd(r'systeminfo | findstr /B /C:"OS Name"')

if "Server" in check_win:

    with disable_file_system_redirection():

        #y=os.popen("wmic service "+service_name+" get state").read()

        process=Popen("wmic service "+service_name+" get state",stdout=PIPE,stderr=PIPE)

        res,err=process.communicate()

        if err:

            print err

            alert(0)

        else:

            if "Stopped" in res:

                alert(1)

                try:            

                    print 'The service '+service_name+' was already in stopped state'           

                    print 'So starting the '+service_name+ 'service ........'            

                    x=os.popen('net start '+service_name).read()            

                    print 'The Service '+service_name+' has been successfully started'            

                except Exception as err: 

                    print "Unable to start the Service" +service_name+'due to below error'

                    print err                                         

            else:

                alert(0)

                print "The service "+service_name+' was already in running state'

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else:

    print "This Procedure only works on Server Machine"

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