擅长:python、mysql、java
<p>您可以尝试使用正则表达式并执行以下操作:</p>
<pre><code>import re
pattern=r'(?<=as\s)\w.+'
occurrence={}
with open("/var/log/messages") as f:
for line in f:
search=re.search(pattern,line).group()
if search not in occurrence:
occurrence[search]=1
else:
occurrence[search]=occurrence.get(search)+1
print(occurrence)
</code></pre>
<blockquote>
<p>Just for fun one line logic:</p>
</blockquote>
^{pr2}$