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Automation & scripting

CLI tools, scheduled jobs, filesystem tasks, and glue scripts that save time.

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Automation & scripting easy

Parse nginx access log top IPs in Python

Reads an nginx access log line by line, extracts the client IP, and returns the most frequent IPs using a regex and Counter.

nginx log parsing regex
Python 
import re
from collections import Counter

def top_ips(log_file, n=10):
    ip_pattern = re.compile(r'^(\S+)')
    ip_counts = Counter()

    with open(log_file, 'r') as f:
        for line in f:
            match = ip_pattern.match(line)
            if match:
                ip_counts[match.group(1)] += 1

    return…
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