Linux日志怎么切割_Linux日志通过编写Ruby脚本实现日志切割的示例代码

#!/usr/bin/env ruby
<p>LOG_FILE = "/var/log/myapp.log"
MAX_SIZE   = 10 <em> 1024 </em> 1024  # 10MB
ARCHIVE_DIR = "/var/log/archive"</p><h1>创建归档目录（如果不存在）</h1><p>Dir.mkdir(ARCHIVE_DIR) unless Dir.exist?(ARCHIVE_DIR)</p><h1>判断日志文件是否存在且超过限制</h1><p>if File.exist?(LOG_FILE) && File.size(LOG_FILE) > MAX_SIZE
timestamp = Time.now.strftime("%Y%m%d-%H%M%S")
backup_log = "#{ARCHIVE_DIR}/myapp.log.#{timestamp}.gz"</p><h1>压缩当前日志</h1><p>system("gzip", "-c", LOG_FILE, ">", backup_log)</p>
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                <h1>清空原日志文件</h1><p>File.open(LOG_FILE, "w") { |f| f.write("") }</p><p>puts "Log rotated: #{backup_log}"
else
puts "Log size is under control: #{File.size(LOG_FILE)} bytes"
end</p>