Log Analyzer Skill

Analyze log files for errors and patterns.

Find Errors

grep -i "error\|exception\|fatal\|critical" {logfile} | tail -20

Count by Level

python3 -c "
import re, collections
with open('{logfile}') as f:
    levels = re.findall(r'\b(ERROR|WARN|INFO|DEBUG|FATAL)\b', f.read())
counts = collections.Counter(levels)
for level, count in counts.most_common():
    print(f'{level:8s} {count}')
"

Time Range Filter

awk '/2024-01-15 10:00/,/2024-01-15 11:00/' {logfile}

Top Error Messages

grep -i error {logfile} | sort | uniq -c | sort -rn | head -10

Notes

• Summarize findings in a clear format
• Highlight the most critical issues first
• Suggest likely root causes when possible