Process PID Monitoring

#!/usr/bin/evn python# -*- coding:utf-8 -*-#Author  =  ' June ' "" "can monitor multiple processes simultaneously" "Import  sysimport reimport osimport linecachetry:    import psutilexcept  importerror as e:    print e    sys.exit () def  process (processname):     plist = []    getplist =  psutil.process_iter ()     for pro in getplist:         p = str (PRO)         re1 =  Re.compile (Processname, re. I)         if re1.search (p):             plist.append (str (P). Split (' pid= ') [1].split (', ') [0])      return plistdef file_size_check (logfile):     if os.path.isFile (logfile):         if os.path.getsize (logfile)  >  2700000:            f = open (LogFile,   ' W ')             f.write ("")              f.close () Def main (pname, filename,  Pnumber=1):     readline = pnumber * 2    logfile  = os.path.dirname (Os.path.realpath (__file__))  + os.sep + filename     file_size_check (logfile)     pidlist = process (pname)      chpidlist = []    lines = linecache.getlines (logfile) [- Readline:]    taillines = [line.strip (' \ n ')  for line in  lines]    pl&Nbsp;= [p for p in pidlist if taillines.count (P)  == 2]     f = open (logfile,  ' a ')     if len (taillines)   < readline:        print  "check log less  Than %s line " % readline        [f.write (p +   ' \ n ')  for p in pidlist]        f.close ()         sys.exit (0)     elif len (PL)  ==  pnumber:        print  "Check %s process ok,  pidis : " % pname, pidlist        [f.write (P  +  ' \ n ')  for p in pidlist]         F.close ()     &Nbsp;   sys.exit (0)     else:         for p in pidlist:             If taillines.count (P)  != 2:                 chpidlist.append (p)         print  " check %s process is change, change pid is ::: " % pname,  chpidlist        [f.write (p +  ' \ n ')  for p  in pidlist]        f.close ()          sys.exit (1) if __name__ ==  ' __main__ ':     if len ( SYS.ARGV)  == 3:        proname = sys.argv[1]       &Nbsp; pnum = int (sys.argv[2])         logf =  " Check_%s_pid " % proname        main (PRONAME,&NBSP;LOGF,  pnum)     elif len (SYS.ARGV)  == 2:         proname = sys.argv[1]        logf =  " Check_%s_pid " % proname        main (PRONAME,&NBSP;LOGF)     else:        print  "usage:%s  processname [processnumber]  " % sys.argv[0]         sys.exit (2)

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Process PID Monitoring