自动重命名alert日志，并清理trc文件

#!/usr/bin/python

import linecache
import os
import time

# def log 
def rlog(log):
        LTIME=time.strftime('%Y-%m-%d %H:%M:%S')
        f=open('/tmp/poracle.log','a')
        f.write("\033[32;1m"+LTIME+' '+log+"\n\033[0m")
        f.close()
def wlog(log):
        LTIME=time.strftime('%Y-%m-%d %H:%M:%S')
        f=open('/tmp/poracle.log','a')
        f.write("\033[31;1m"+LTIME+' '+log+"\n\033[0m")
        f.close()


#get DUMP_DIR parameter
f=open('/tmp/tmp.sql','w')
f.write("spool /tmp/output.txt\n")
f.write("select value from v$parameter where name='background_dump_dest';\n")
f.write("spool off\n")
f.write("exit")
f.close()
try:
        os.system("sqlplus / as sysdba @/tmp/tmp.sql")
except:
        pass
DUMP_DIR=str.strip(linecache.getline(r'/tmp/output.txt',4))
os.remove('/tmp/tmp.sql')
os.remove('/tmp/output.txt')

#create trace_dir directory
BASE_DIR=DUMP_DIR+'/'+time.strftime('%Y')
print BASE_DIR
TRACE_DIR=BASE_DIR+'/trace'+time.strftime('%m')
ISEXISTS=os.path.exists(BASE_DIR)
if not ISEXISTS:
        os.mkdir(BASE_DIR)
        rlog("create "+BASE_DIR+" success!")
else:
        pass
ISEXISTS=os.path.exists(TRACE_DIR)
if not ISEXISTS:
        os.mkdir(TRACE_DIR)
        rlog("create "+TRACE_DIR+" success!")
else:
        pass

#move trace tmpfile to trace_dir
try:
        CMD=os.system("mv %s/*.trc  %s" %(DUMP_DIR,TRACE_DIR))
except:
        pass

if CMD==0:
        rlog(" Move"+DUMP_DIR+"tempfile trc to "+TRACE_DIR+" success!\n")
else:
        wlog(" Move"+DUMP_DIR+"tempfile trc to "+TRACE_DIR+" faild!\n")
try:
        CMD=os.system("mv %s/*.trm  %s" %(DUMP_DIR,TRACE_DIR))
except:
        pass
if CMD==0:
        rlog(" Move"+DUMP_DIR+"tempfile trm to "+TRACE_DIR+" success!\n")
else:
        wlog(" Move"+DUMP_DIR+"tempfile trm to "+TRACE_DIR+" faild!\n")
#get instance_name
f=open('/tmp/instance.sql','w')
f.write("spool /tmp/output_instance.txt\n")
f.write("select instance_name from v$instance;\n")
f.write("spool off\n")
f.write("exit")
f.close()
try:
        os.system("sqlplus / as sysdba @/tmp/instance.sql")
except:
        pass
INSTANCE_NAME=str.strip(linecache.getline(r'/tmp/output_instance.txt',4))
print INSTANCE_NAME
ALERT_NAME="alert_"+INSTANCE_NAME+'.log'
print ALERT_NAME
ALERT_TIME=time.strftime('%Y%m%d%H%M')
os.remove('/tmp/instance.sql')
os.remove('/tmp/output_instance.txt')

#rename alert log
try:
        CMD=os.system("mv %s/%s %s/%s.%s" %(DUMP_DIR,ALERT_NAME,DUMP_DIR,ALERT_NAME,ALERT_TIME))
except:
        pass

if CMD==0:
        rlog(" Rename"+ALERT_NAME+" to "+ALERT_NAME+ALERT_TIME+" success!\n")
else:
        wlog(" Rename"+ALERT_NAME+" to "+ALERT_NAME+ALERT_TIME+" faild!\n")