{"id":61926,"date":"2025-04-29T15:39:31","date_gmt":"2025-04-29T07:39:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/61926\/"},"modified":"2025-04-29T15:39:31","modified_gmt":"2025-04-29T07:39:31","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87linux%e5%b7%a5%e5%85%b7%e5%ae%9e%e7%8e%b0%e6%97%a5%e5%bf%97%e7%9b%91%e6%8e%a7%e5%92%8c%e8%ad%a6%e6%8a%a5%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/61926\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7Linux\u5de5\u5177\u5b9e\u73b0\u65e5\u5fd7\u76d1\u63a7\u548c\u8b66\u62a5\uff1f"},"content":{"rendered":"<p>\u5982\u4f55\u901a\u8fc7\u5b9e\u73b0\u548c\u8b66\u62a5\uff1f<\/p>\n<p>\u5728\u65e5\u5e38\u7684\u670d\u52a1\u5668\u7ba1\u7406\u548c\u8fd0\u7ef4\u8fc7\u7a0b\u4e2d\uff0c\u5b9e\u65f6\u76d1\u63a7\u548c\u5206\u6790\u65e5\u5fd7\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u65e5\u5fd7\u76d1\u63a7\u548c\u8b66\u62a5\u7684\u529f\u80fd\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Linux\u5de5\u5177\u6765\u76d1\u63a7\u548c\u8b66\u62a5\u65e5\u5fd7\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528tail\u547d\u4ee4\u5b9e\u65f6\u67e5\u770b\u65e5\u5fd7<\/li>\n<\/ol>\n<p>tail\u547d\u4ee4\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u65e5\u5fd7\u6587\u4ef6\u7684\u66f4\u65b0\u5185\u5bb9\u3002\u901a\u8fc7\u4f7f\u7528tail\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u7ec8\u7aef\u7a97\u53e3\u4e2d\u5b9e\u65f6\u663e\u793a\u65e5\u5fd7\u6587\u4ef6\u7684\u6700\u65b0\u5185\u5bb9\u3002<\/p>\n<pre>tail -f \/var\/log\/syslog<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u5b9e\u65f6\u663e\u793a\/var\/log\/syslog\u6587\u4ef6\u7684\u6700\u65b0\u5185\u5bb9\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u66ff\u6362\u6587\u4ef6\u8def\u5f84\u3002\u4f7f\u7528Ctrl+C\u53ef\u4ee5\u505c\u6b62\u65e5\u5fd7\u7684\u67e5\u770b\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528grep\u547d\u4ee4\u8fc7\u6ee4\u65e5\u5fd7<\/li>\n<\/ol>\n<p>grep\u547d\u4ee4\u53ef\u4ee5\u7528\u6765\u8fc7\u6ee4\u65e5\u5fd7\u6587\u4ef6\uff0c\u53ea\u663e\u793a\u6ee1\u8db3\u6761\u4ef6\u7684\u884c\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7grep\u547d\u4ee4\u6765\u67e5\u627e\u7279\u5b9a\u7684\u5173\u952e\u5b57\uff0c\u6216\u8005\u6392\u9664\u4e00\u4e9b\u5173\u952e\u5b57\u3002<\/p>\n<pre>grep \"error\" \/var\/log\/syslog<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u663e\u793a\/var\/log\/syslog\u6587\u4ef6\u4e2d\u5305\u542b&#8221;error&#8221;\u5173\u952e\u5b57\u7684\u884c\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u4fee\u6539\u5173\u952e\u5b57\u548c\u6587\u4ef6\u8def\u5f84\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528awk\u547d\u4ee4\u5bf9\u65e5\u5fd7\u8fdb\u884c\u5904\u7406<\/li>\n<\/ol>\n<p>awk\u547d\u4ee4\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6587\u672c\u5904\u7406\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u5bf9\u65e5\u5fd7\u6587\u4ef6\u8fdb\u884c\u5904\u7406\u548c\u5206\u6790\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u901a\u8fc7awk\u547d\u4ee4\u7edf\u8ba1\u65e5\u5fd7\u6587\u4ef6\u4e2d\u6bcf\u4e2aIP\u5730\u5740\u51fa\u73b0\u7684\u6b21\u6570\u3002<\/p>\n<pre>awk '{count[$1]++} END {for (ip in count) print ip, count[ip]}' \/var\/log\/access.log<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u7edf\u8ba1\/var\/log\/access.log\u6587\u4ef6\u4e2d\u51fa\u73b0\u7684\u6bcf\u4e2aIP\u5730\u5740\u7684\u6b21\u6570\uff0c\u5e76\u5c06\u7ed3\u679c\u8f93\u51fa\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528cron\u5b9a\u65f6\u6267\u884c\u811a\u672c<\/li>\n<\/ol>\n<p>cron\u662f\u4e00\u4e2aLinux\u7cfb\u7edf\u81ea\u5e26\u7684\u5b9a\u65f6\u4efb\u52a1\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528cron\u6765\u5b9a\u65f6\u6267\u884c\u65e5\u5fd7\u76d1\u63a7\u548c\u8b66\u62a5\u811a\u672c\uff0c\u4ee5\u5b9e\u73b0\u81ea\u52a8\u5316\u7684\u65e5\u5fd7\u7ba1\u7406\u3002<\/p>\n<p>\u9996\u5148\uff0c\u4f7f\u7528crontab\u547d\u4ee4\u7f16\u8f91cron\u4efb\u52a1\uff1a<\/p>\n<pre>crontab -e<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u7136\u540e\uff0c\u5728\u6253\u5f00\u7684\u6587\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4e00\u884c\uff0c\u8868\u793a\u6bcf\u5c0f\u65f6\u6267\u884c\u4e00\u6b21\u811a\u672c\uff1a<\/p>\n<pre>0 * * * * \/path\/to\/log_monitor.sh<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u6bcf\u5c0f\u65f6\u6267\u884c\/path\/to\/log_monitor.sh\u811a\u672c\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8c03\u6574\u6267\u884c\u7684\u9891\u7387\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u7f16\u5199\u4e00\u4e2alog_monitor.sh\u811a\u672c\uff0c\u7528\u6765\u76d1\u63a7\u548c\u8b66\u62a5\u65e5\u5fd7\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5f53\u65e5\u5fd7\u6587\u4ef6\u8d85\u8fc7\u6307\u5b9a\u5927\u5c0f\u65f6\uff0c\u53d1\u9001\u90ae\u4ef6\u7ed9\u7ba1\u7406\u5458\u3002<\/p>\n<pre>#!\/bin\/bash\n\nlog_file=\"\/var\/log\/syslog\"\nmax_size=1000000\n\nsize=$(du -b $log_file | awk '{print $1}')\n\nif [ $size -gt $max_size ]; then\n    echo \"Log file $log_file exceeds $max_size bytes\" | mail -s \"\u65e5\u5fd7\u8b66\u62a5\" admin@example.com\nfi<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0a\u9762\u7684\u811a\u672c\u4f7f\u7528du\u547d\u4ee4\u83b7\u53d6\u65e5\u5fd7\u6587\u4ef6\u7684\u5927\u5c0f\uff0c\u5e76\u4e0e\u9884\u8bbe\u7684\u6700\u5927\u5927\u5c0f\u8fdb\u884c\u6bd4\u8f83\u3002\u5982\u679c\u8d85\u8fc7\u6700\u5927\u5927\u5c0f\uff0c\u5c31\u53d1\u9001\u8b66\u62a5\u90ae\u4ef6\u7ed9\u7ba1\u7406\u5458\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u6b65\u9aa4\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u65e5\u5fd7\u7684\u5b9e\u65f6\u76d1\u63a7\u548c\u8b66\u62a5\u529f\u80fd\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\uff0c\u4fee\u6539\u548c\u62d3\u5c55\u4ee5\u4e0a\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u65e5\u5fd7\u7ba1\u7406\u573a\u666f\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u901a\u8fc7Linux\u5de5\u5177\u5b9e\u73b0\u548c\u8b66\u62a5\uff1f\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\u901a\u8fc7\u5b9e\u73b0\u548c\u8b66\u62a5\uff1f \u5728\u65e5\u5e38\u7684\u670d\u52a1\u5668\u7ba1\u7406\u548c\u8fd0\u7ef4\u8fc7\u7a0b\u4e2d\uff0c\u5b9e\u65f6\u76d1\u63a7\u548c\u5206\u6790\u65e5\u5fd7\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u65e5\u5fd7\u76d1\u63a7\u548c\u8b66\u62a5\u7684\u529f\u80fd\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Linux\u5de5\u5177\u6765\u76d1\u63a7\u548c\u8b66\u62a5\u65e5\u5fd7\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002 \u4f7f\u7528tail\u547d\u4ee4\u5b9e\u65f6\u67e5\u770b\u65e5\u5fd7 tail\u547d\u4ee4\u53ef\u4ee5\u5b9e\u65f6\u67e5\u770b\u65e5\u5fd7\u6587\u4ef6\u7684\u66f4\u65b0\u5185\u5bb9\u3002\u901a\u8fc7\u4f7f\u7528tail\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u7ec8\u7aef\u7a97\u53e3\u4e2d\u5b9e\u65f6\u663e\u793a\u65e5\u5fd7\u6587\u4ef6\u7684\u6700\u65b0\u5185\u5bb9\u3002 tail -f \/var\/log\/syslog \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u5b9e\u65f6\u663e\u793a\/var\/log\/syslog\u6587\u4ef6\u7684\u6700\u65b0\u5185\u5bb9\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u66ff\u6362\u6587\u4ef6\u8def\u5f84\u3002\u4f7f\u7528Ctrl+C\u53ef\u4ee5\u505c\u6b62\u65e5\u5fd7\u7684\u67e5\u770b\u3002 \u4f7f\u7528grep\u547d\u4ee4\u8fc7\u6ee4\u65e5\u5fd7 grep\u547d\u4ee4\u53ef\u4ee5\u7528\u6765\u8fc7\u6ee4\u65e5\u5fd7\u6587\u4ef6\uff0c\u53ea\u663e\u793a\u6ee1\u8db3\u6761\u4ef6\u7684\u884c\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7grep\u547d\u4ee4\u6765\u67e5\u627e\u7279\u5b9a\u7684\u5173\u952e\u5b57\uff0c\u6216\u8005\u6392\u9664\u4e00\u4e9b\u5173\u952e\u5b57\u3002 grep &#8220;error&#8221; \/var\/log\/syslog \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u663e\u793a\/var\/log\/syslog\u6587\u4ef6\u4e2d\u5305\u542b&#8221;error&#8221;\u5173\u952e\u5b57\u7684\u884c\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u4fee\u6539\u5173\u952e\u5b57\u548c\u6587\u4ef6\u8def\u5f84\u3002 \u4f7f\u7528awk\u547d\u4ee4\u5bf9\u65e5\u5fd7\u8fdb\u884c\u5904\u7406 awk\u547d\u4ee4\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6587\u672c\u5904\u7406\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u5bf9\u65e5\u5fd7\u6587\u4ef6\u8fdb\u884c\u5904\u7406\u548c\u5206\u6790\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u901a\u8fc7awk\u547d\u4ee4\u7edf\u8ba1\u65e5\u5fd7\u6587\u4ef6\u4e2d\u6bcf\u4e2aIP\u5730\u5740\u51fa\u73b0\u7684\u6b21\u6570\u3002 awk &#8216;{count[$1]++} END {for (ip in count) print ip, count[ip]}&#8217; \/var\/log\/access.log \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u7edf\u8ba1\/var\/log\/access.log\u6587\u4ef6\u4e2d\u51fa\u73b0\u7684\u6bcf\u4e2aIP\u5730\u5740\u7684\u6b21\u6570\uff0c\u5e76\u5c06\u7ed3\u679c\u8f93\u51fa\u3002 \u4f7f\u7528cron\u5b9a\u65f6\u6267\u884c\u811a\u672c cron\u662f\u4e00\u4e2aLinux\u7cfb\u7edf\u81ea\u5e26\u7684\u5b9a\u65f6\u4efb\u52a1\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528cron\u6765\u5b9a\u65f6\u6267\u884c\u65e5\u5fd7\u76d1\u63a7\u548c\u8b66\u62a5\u811a\u672c\uff0c\u4ee5\u5b9e\u73b0\u81ea\u52a8\u5316\u7684\u65e5\u5fd7\u7ba1\u7406\u3002 \u9996\u5148\uff0c\u4f7f\u7528crontab\u547d\u4ee4\u7f16\u8f91cron\u4efb\u52a1\uff1a crontab -e \u767b\u5f55\u540e\u590d\u5236 \u7136\u540e\uff0c\u5728\u6253\u5f00\u7684\u6587\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4e00\u884c\uff0c\u8868\u793a\u6bcf\u5c0f\u65f6\u6267\u884c\u4e00\u6b21\u811a\u672c\uff1a 0 * * * * \/path\/to\/log_monitor.sh \u767b\u5f55\u540e\u590d\u5236 \u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u6bcf\u5c0f\u65f6\u6267\u884c\/path\/to\/log_monitor.sh\u811a\u672c\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8c03\u6574\u6267\u884c\u7684\u9891\u7387\u3002 \u63a5\u4e0b\u6765\uff0c\u7f16\u5199\u4e00\u4e2alog_monitor.sh\u811a\u672c\uff0c\u7528\u6765\u76d1\u63a7\u548c\u8b66\u62a5\u65e5\u5fd7\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5f53\u65e5\u5fd7\u6587\u4ef6\u8d85\u8fc7\u6307\u5b9a\u5927\u5c0f\u65f6\uff0c\u53d1\u9001\u90ae\u4ef6\u7ed9\u7ba1\u7406\u5458\u3002 #!\/bin\/bash log_file=&#8221;\/var\/log\/syslog&#8221; max_size=1000000 size=$(du -b $log_file | awk [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-61926","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/61926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=61926"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/61926\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=61926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=61926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=61926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}