{"id":61651,"date":"2025-04-29T15:05:32","date_gmt":"2025-04-29T07:05:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/61651\/"},"modified":"2025-04-29T15:05:32","modified_gmt":"2025-04-29T07:05:32","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8linux%e4%b8%8a%e8%ae%be%e7%bd%ae%e5%ae%9e%e6%97%b6%e6%97%a5%e5%bf%97%e7%9b%91%e6%8e%a7-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/61651\/","title":{"rendered":"\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7"},"content":{"rendered":"<p>\u5982\u4f55\u5728\u4e0a\u8bbe\u7f6e\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7<\/p>\n<p>\u6458\u8981\uff1a\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u65f6\u83b7\u53d6\u7cfb\u7edf\u65e5\u5fd7\u4ee5\u53ca\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e0a\u8bbe\u7f6e\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<p>\u4e00\u3001\u4ecb\u7ecd<br \/>\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u662f\u4e00\u79cd\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7\u4fe1\u606f\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u53d1\u73b0\u7cfb\u7edf\u6216\u5e94\u7528\u7a0b\u5e8f\u7684\u5f02\u5e38\u884c\u4e3a\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u5de5\u5177\u548c\u547d\u4ee4\u6765\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u6bd4\u5982tail\u547d\u4ee4\u3001journalctl\u5de5\u5177\u7b49\u3002<\/p>\n<p>\u4e8c\u3001\u4f7f\u7528tail\u547d\u4ee4\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7<br \/>tail\u547d\u4ee4\u662fLinux\u7cfb\u7edf\u4e2d\u5e38\u7528\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u5b9e\u65f6\u67e5\u770b\u6587\u4ef6\u7684\u66f4\u65b0\u5185\u5bb9\u3002\u6211\u4eec\u53ef\u4ee5\u5229\u7528tail\u547d\u4ee4\u6765\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>\u6253\u5f00\u7ec8\u7aef\uff0c\u5e76\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>tail -f \/var\/log\/syslog<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c06\u4f1a\u5b9e\u65f6\u8f93\u51fa\u7cfb\u7edf\u65e5\u5fd7\u6587\u4ef6\/syslog\u7684\u6700\u65b0\u5185\u5bb9\u3002<\/p>\n<\/li>\n<li>\u5982\u679c\u6211\u4eec\u60f3\u8981\u5b9e\u65f6\u67e5\u770b\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u53ef\u4ee5\u5c06\u547d\u4ee4\u4e2d\u7684\u65e5\u5fd7\u6587\u4ef6\u8def\u5f84\u6539\u4e3a\u76f8\u5e94\u7684\u5e94\u7528\u7a0b\u5e8f\u65e5\u5fd7\u6587\u4ef6\u8def\u5f84\u3002<\/li>\n<\/ol>\n<p>\u4e09\u3001\u4f7f\u7528journalctl\u547d\u4ee4\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7<br \/>journalctl\u547d\u4ee4\u662fLinux\u7cfb\u7edf\u4e2d\u7528\u4e8e\u67e5\u8be2\u548c\u7ba1\u7406\u7cfb\u7edf\u65e5\u5fd7\u4fe1\u606f\u7684\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u5229\u7528journalctl\u547d\u4ee4\u6765\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>\u6253\u5f00\u7ec8\u7aef\uff0c\u5e76\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>journalctl -f<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c06\u4f1a\u5b9e\u65f6\u8f93\u51fa\u7cfb\u7edf\u7684\u65e5\u5fd7\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u8981\u5b9e\u65f6\u67e5\u770b\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728\u547d\u4ee4\u4e2d\u52a0\u5165\u76f8\u5e94\u7684\u8fc7\u6ee4\u6761\u4ef6\uff0c\u6bd4\u5982\u5e94\u7528\u7a0b\u5e8f\u7684\u540d\u79f0\uff1a<\/p>\n<pre>journalctl -f -u application.service<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c06\u4f1a\u5b9e\u65f6\u8f93\u51fa\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u56db\u3001\u9644\u52a0\u529f\u80fd\uff1a\u5b9e\u65f6\u8fc7\u6ee4\u548c\u4fdd\u5b58\u65e5\u5fd7<br \/>\u9664\u4e86\u5b9e\u65f6\u67e5\u770b\u65e5\u5fd7\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5bf9\u65e5\u5fd7\u8fdb\u884c\u8fc7\u6ee4\u5e76\u4fdd\u5b58\u5230\u6307\u5b9a\u6587\u4ef6\u4e2d\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>import subprocess\n\ndef monitor_log():\n    log_file_path = \"\/var\/log\/syslog\"  # \u65e5\u5fd7\u6587\u4ef6\u8def\u5f84\n    output_file_path = \"\/tmp\/syslog_filtered.log\"  # \u8fc7\u6ee4\u540e\u7684\u65e5\u5fd7\u6587\u4ef6\u4fdd\u5b58\u8def\u5f84\n\n    subprocess.Popen(\n        [\"tail\", \"-f\", log_file_path],\n        stdout=subprocess.PIPE,\n        stderr=subprocess.PIPE\n    )\n\n    while True:\n        line = input()  # \u4ece\u7ec8\u7aef\u8f93\u5165\u8bfb\u53d6\u6bcf\u4e00\u884c\u65e5\u5fd7\n        if \"error\" in line.lower():  # \u8fc7\u6ee4\u5305\u542b\u5173\u952e\u5b57\"error\"\u7684\u65e5\u5fd7\n            with open(output_file_path, \"a\") as f:\n                f.write(line + \"\n\")  # \u5c06\u8fc7\u6ee4\u540e\u7684\u65e5\u5fd7\u5199\u5165\u6307\u5b9a\u6587\u4ef6\n\nif __name__ == \"__main__\":\n    monitor_log()<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4f7f\u7528Python\u7684subprocess\u6a21\u5757\u8c03\u7528tail\u547d\u4ee4\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5e76\u901a\u8fc7\u8f93\u5165\u6307\u4ee4\u5b9e\u73b0\u5bf9\u65e5\u5fd7\u8fdb\u884c\u8fc7\u6ee4\u5e76\u4fdd\u5b58\u5230\u6307\u5b9a\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>\u7ed3\u8bba\uff1a<br \/>\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u5728Linux\u7cfb\u7edf\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5373\u65f6\u53d1\u73b0\u7cfb\u7edf\u6216\u5e94\u7528\u7a0b\u5e8f\u7684\u5f02\u5e38\u884c\u4e3a\u3002\u901a\u8fc7\u4f7f\u7528tail\u547d\u4ee4\u6216journalctl\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u65e5\u5fd7\u6216\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u65e5\u5fd7\u7684\u5b9e\u65f6\u76d1\u63a7\u3002\u540c\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5bf9\u65e5\u5fd7\u8fdb\u884c\u8fc7\u6ee4\u548c\u4fdd\u5b58\u6765\u8fdb\u4e00\u6b65\u63d0\u9ad8\u65e5\u5fd7\u76d1\u63a7\u7684\u6548\u679c\u3002\u5e0c\u671b\u672c\u6587\u6240\u63d0\u4f9b\u7684\u4ee3\u7801\u793a\u4f8b\u5bf9\u60a8\u7684\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728\u4e0a\u8bbe\u7f6e\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7 \u6458\u8981\uff1a\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u65f6\u83b7\u53d6\u7cfb\u7edf\u65e5\u5fd7\u4ee5\u53ca\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e0a\u8bbe\u7f6e\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u4ecb\u7ecd\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\u662f\u4e00\u79cd\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7\u4fe1\u606f\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u53d1\u73b0\u7cfb\u7edf\u6216\u5e94\u7528\u7a0b\u5e8f\u7684\u5f02\u5e38\u884c\u4e3a\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u5de5\u5177\u548c\u547d\u4ee4\u6765\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u6bd4\u5982tail\u547d\u4ee4\u3001journalctl\u5de5\u5177\u7b49\u3002 \u4e8c\u3001\u4f7f\u7528tail\u547d\u4ee4\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7tail\u547d\u4ee4\u662fLinux\u7cfb\u7edf\u4e2d\u5e38\u7528\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u5b9e\u65f6\u67e5\u770b\u6587\u4ef6\u7684\u66f4\u65b0\u5185\u5bb9\u3002\u6211\u4eec\u53ef\u4ee5\u5229\u7528tail\u547d\u4ee4\u6765\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a \u6253\u5f00\u7ec8\u7aef\uff0c\u5e76\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a tail -f \/var\/log\/syslog \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u547d\u4ee4\u5c06\u4f1a\u5b9e\u65f6\u8f93\u51fa\u7cfb\u7edf\u65e5\u5fd7\u6587\u4ef6\/syslog\u7684\u6700\u65b0\u5185\u5bb9\u3002 \u5982\u679c\u6211\u4eec\u60f3\u8981\u5b9e\u65f6\u67e5\u770b\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u53ef\u4ee5\u5c06\u547d\u4ee4\u4e2d\u7684\u65e5\u5fd7\u6587\u4ef6\u8def\u5f84\u6539\u4e3a\u76f8\u5e94\u7684\u5e94\u7528\u7a0b\u5e8f\u65e5\u5fd7\u6587\u4ef6\u8def\u5f84\u3002 \u4e09\u3001\u4f7f\u7528journalctl\u547d\u4ee4\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7journalctl\u547d\u4ee4\u662fLinux\u7cfb\u7edf\u4e2d\u7528\u4e8e\u67e5\u8be2\u548c\u7ba1\u7406\u7cfb\u7edf\u65e5\u5fd7\u4fe1\u606f\u7684\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u5229\u7528journalctl\u547d\u4ee4\u6765\u5b9e\u73b0\u5b9e\u65f6\u65e5\u5fd7\u76d1\u63a7\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a \u6253\u5f00\u7ec8\u7aef\uff0c\u5e76\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a journalctl -f \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u547d\u4ee4\u5c06\u4f1a\u5b9e\u65f6\u8f93\u51fa\u7cfb\u7edf\u7684\u65e5\u5fd7\u4fe1\u606f\u3002 \u5982\u679c\u6211\u4eec\u60f3\u8981\u5b9e\u65f6\u67e5\u770b\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728\u547d\u4ee4\u4e2d\u52a0\u5165\u76f8\u5e94\u7684\u8fc7\u6ee4\u6761\u4ef6\uff0c\u6bd4\u5982\u5e94\u7528\u7a0b\u5e8f\u7684\u540d\u79f0\uff1a journalctl -f -u application.service \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u8ff0\u547d\u4ee4\u5c06\u4f1a\u5b9e\u65f6\u8f93\u51fa\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u65e5\u5fd7\u4fe1\u606f\u3002 \u56db\u3001\u9644\u52a0\u529f\u80fd\uff1a\u5b9e\u65f6\u8fc7\u6ee4\u548c\u4fdd\u5b58\u65e5\u5fd7\u9664\u4e86\u5b9e\u65f6\u67e5\u770b\u65e5\u5fd7\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5bf9\u65e5\u5fd7\u8fdb\u884c\u8fc7\u6ee4\u5e76\u4fdd\u5b58\u5230\u6307\u5b9a\u6587\u4ef6\u4e2d\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a import subprocess def monitor_log(): log_file_path = &#8220;\/var\/log\/syslog&#8221; # \u65e5\u5fd7\u6587\u4ef6\u8def\u5f84 output_file_path = &#8220;\/tmp\/syslog_filtered.log&#8221; # \u8fc7\u6ee4\u540e\u7684\u65e5\u5fd7\u6587\u4ef6\u4fdd\u5b58\u8def\u5f84 subprocess.Popen( [&#8220;tail&#8221;, &#8220;-f&#8221;, log_file_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE ) while True: line = input() # \u4ece\u7ec8\u7aef\u8f93\u5165\u8bfb\u53d6\u6bcf\u4e00\u884c\u65e5\u5fd7 if &#8220;error&#8221; 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