从日志文本文件中提取特定字符串和相关时间戳w.r.t字符串的Python脚本
我有一个名为从日志文本文件中提取特定字符串和相关时间戳w.r.t字符串的Python脚本,python,Python,我有一个名为log.txt的文件,其格式如下: Wed Oct 16 16:48:55.322 2013] [ 23.923652] warning: `zygote' uses 32-bit capabilities (legacy support in use) [Wed Oct 16 16:49:06.470 2013] [ 35.071554] lowmemorykiller: lowmem_shrink: convert oom_adj to oom_score_adj:
log.txt
的文件,其格式如下:
Wed Oct 16 16:48:55.322 2013] [ 23.923652] warning: `zygote' uses 32-bit capabilities (legacy support in use)
[Wed Oct 16 16:49:06.470 2013] [ 35.071554] lowmemorykiller: lowmem_shrink: convert oom_adj to oom_score_adj:
[Wed Oct 16 16:49:06.479 2013] [ 35.079038] lowmemorykiller: oom_adj 0 => oom_score_adj 0
[Wed Oct 16 16:49:06.479 2013] [ 35.084666] lowmemorykiller: oom_adj 1 => oom_score_adj 58
[Wed Oct 16 16:49:06.506 2013] [ 35.090390] lowmemorykiller: oom_adj 2 => oom_score_adj 117
[Wed Oct 16 16:49:06.506 2013] [ 35.096195] lowmemorykiller: oom_adj 4 => oom_score_adj 235
[Wed Oct 16 16:49:06.506 2013] [ 35.102037] lowmemorykiller: oom_adj 9 => oom_score_adj 529
[Wed Oct 16 16:49:06.506 2013] [ 35.107808] lowmemorykiller: oom_adj 15 => oom_score_adj 1000
[Wed Oct 16 16:49:06.753 2013] [ 35.356038] ADDRCONF(NETDEV_UP): eth0: link is not ready
[Wed Oct 16 16:49:08.505 2013] [ 37.099758] `eth0: link up`, 10 Mb/s, half duplex, flow control enabled
[Wed Oct 16 16:49:08.505 2013] [ 37.106453] eth0: link up, 100 Mb/s, full duplex, flow control enabled
现在我想从上面的值中提取字符串“eth0:link up”
,相应的时间戳“16:49:08.505”
和相应的值“37.099758”
输出应该如下所示:
String timestamp time spent
eth0: link up 16:49:08.505 37.099758
我不太懂python,有人能帮我吗
@伊布拉舍维奇
正如上面的情况,我有更多的要求,所以我尝试了一些代码。日志将与上面相同
现在输出:如果log.txt中存在字符串,那么它应该打印相应的时间戳
或者,如果该字符串不在log.txt中,则应显示“未找到字符串”
String timestamp time spent
eth0: link up 16:49:08.505 37.099758
SPI Controller probe NOT FOUND
i2c /dev entries driver NOT FOUND
我尝试了以下代码。。但是我得到了一些不同的输出。
你能在这方面帮助我吗
#!/usr/bin/python
import argparse
import re
parser = argparse.ArgumentParser(description='Log file parse to check Boot time log')
parser.add_argument('-f','--logfile', help='logfile to filter', required=True)
args = parser.parse_args()
log_patterns = [
{'pattern':'sys_init start'},
{'pattern':'Image verified,start/Start Bootloader'} ,
{'pattern':'Kernel image decrypt'},
{'pattern':'verify Kernel image passed'},
{'pattern':'Start kernel at 0x01008000'},
{'pattern':'Uncompressing Linux... done, booting the kernel'},
{'pattern':'SPI Controller probe'},
{'pattern':'i2c /dev entries driver'},
{'pattern':'net eth0:'},
{'pattern':'Network_init/eth0: link becomes ready'},
{'pattern':'eth0: link up'},
]
with open(args.logfile,"r") as f:
read_data = f.read()
for line in read_data.splitlines():
for ikey in log_patterns:
if ikey['pattern'] in line:
match = re.search(ikey['pattern'], line)
if match:
temp = line.replace('[','').split(']')
print "{0:50}{1:30}".format(ikey['pattern'],temp[0], temp[1])
else:
print "{0:50} {1:30}".format(ikey['pattern'],'NOT FOUND')
以下是一些可以让您开始学习的内容,您可以继续学习并改进:
with open("file.txt","r") as f:
read_data = f.read()
for line in read_data.splitlines():
if "eth0: link up" in line:
temp = line.replace('[','').split(']')
print "eth0: link up {0} {1}".format(temp[0], temp[1])
编辑:
您好,这里是您问题的编辑,希望对您有所帮助:
for line in read_data.splitlines():
for ikey in log_patterns:
if ikey['pattern'] in line:
match = re.search(ikey['pattern'], line)
if match:
temp = line.replace('[','').split(']')
#changed line below
print "{0:20}{1:30}{2:20}".format(ikey['pattern'],temp[0], temp[1])
else:
print "{0:50} {1:30}".format(ikey['pattern'],'NOT FOUND')
到目前为止你试过什么?展示一些Python代码,也许其他人可以提供帮助。我用我尝试过的代码编辑了我的问题。但我还是被卡住了。有什么可以帮我的吗。谢谢你的回复。现在我在我的txt文件中得到了这种日志,现在我想提取时间戳。我试图修改你的建议代码以获得下面的时间戳…但是我失败了。你能帮我吗。事实上,有些时候我不会喝啤酒。。06-06 13:21:41.840 D/TvMediaPlayer(2584):ZAP_MEAS:TVMP.Reset 06-06 13:21:41.840 V/MediaPlayerService(1575):[3]Reset 06-06 13:22:41.840 V/tvmplayersase(1575):tvmplayersase::Reset您能提供新的日志和您能提供的代码吗,代码你试图让它工作。我用代码编辑了我的问题。你能检查一下为什么它给我错误的输出。我编辑了我的问题。你能帮我解决这个问题吗。。。