Log Parsing using MATLAB

8 次查看（过去 30 天）
Joshua Mikhael Prieto
评论： Ruben Ruiloba 2021-8-28
Hello! Can someone help me with log parsing a file? I did searched videos and I get some parts of it like importing.
For example this is my file (data_file.txt)
98.140.180.244 - harber4797 [21/Jun/2019:16:01:53 -0700] "POST /seize/b2b/synergistic HTTP/2.0" 203 9396
54.92.231.149 - ziemann5634 [21/Jun/2019:16:01:54 -0700] "GET /revolutionize/matrix HTTP/2.0" 304 27968
205.98.120.209 - trantow6874 [21/Jun/2019:16:01:39 -0700] "PUT /front-end/world-class/partnerships/schemas HTTP/1.0" 401 25144
148.196.48.243 - ondricka6863 [21/Jun/2019:16:01:40 -0700] "GET /best-of-breed/reinvent HTTP/1.1" 501 29641
130.229.174.187 - hackett3055 [21/Jun/2019:16:01:41 -0700] "GET /sticky/deliver HTTP/2.0" 404 5708
if I input 'harber4797' to a function, how can I extract its whole line? What conditional works should I do? Thank you

请先登录，再回答此问题。

回答（2 个）

Walter Roberson
Walter Roberson 2020-10-27
编辑：Walter Roberson 2021-8-28
S = fileread('data_file.txt');
line_matches = regexp(S, '^.*\sharber4797\s.*$', 'lineanchors', 'dotexceptnewline')
Ruben Ruiloba
Ruben Ruiloba 2021-8-27
I get an error Matrix dimensions must agree. when I run
line_matches = regexp(S< '^.*\sharber4797\s.*$', 'lineanchors', 'dotexceptnewline')
Not sure why.
  1 个评论
Walter Roberson
Walter Roberson 2021-8-28
Sorry about that. < is shift-comma on my keyboard, and I wanted a comma at that point instead of a <

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with MATLAB 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by