我有一个包含几十万行的日志文件。
我正在遍历这些行以查找带有某些特定文本的任何行,例如:!!event!!
.
然后,一旦!!event!!
找到一行,我需要在这一行之后继续循环,!!event!!
直到找到接下来的 3 行,其中包含他们自己的特定 text ('flag1', 'flag2', and 'flag3')
。
一旦找到第三行('flag3')
,我就想继续循环下一!!event!!
行并重复前一个过程,直到没有更多事件为止。
有没有人对我构建代码以完成此任务的方式提出建议?
例如:
f = open('samplefile.log','r')
for line in f:
if '!!event!!' in line:
L0 = line
#then get the lines after L0 containing: 'flag1', 'flag2', and 'flag3'
# below is a sample log file
#I am not sure how to accomplish this
#(I am thinking a loop within the current loop)
#I know the following is incorrect, but the
intended result would be able to yield something like this:
if "flag1" in line:
L1 = line.split()
if "flag2" in line:
L2 = line.split()
if "flag3" in line:
L3 = line.split()
print 'Event and flag times: ', L0[0], L1[0], L2[0], L3[0]
样本文件.log
8:41:05 asdfa 32423
8:41:06 dasd 23423
8:41:07 dfsd 342342
8:41:08 !!event!! 23423
8:41:09 asdfs 2342
8:41:10 asdfas flag1
8:41:11 asda 42342
8:41:12 sdfs flag2
8:41:13 sdafsd 2342
8:41:14 asda 3443
8:41:15 sdfs 2323
8:41:16 sdafsd flag3
8:41:17 asda 2342
8:41:18 sdfs 3443
8:41:19 sdafsd 2342
8:41:20 asda 3443
8:41:21 sdfs 4544
8:41:22 !!event!! 5645
8:41:23 sdfs flag1
8:41:24 sadfs flag2
8:41:25 dsadf 32423
8:41:26 sdfa 23423
8:41:27 sdfsa flag3
8:41:28 sadfa 23423
8:41:29 sdfas 2342
8:41:30 dfsdf 2342
此示例中的代码应打印:
Event and flag times: 8:41:08 8:41:10 8:41:12 8:41:16
Event and flag times: 8:41:22 8:41:23 8:41:24 8:41:27