{"id":139,"date":"2022-05-13T12:31:33","date_gmt":"2022-05-13T04:31:33","guid":{"rendered":"https:\/\/frogvps.com\/?p=139"},"modified":"2022-05-13T12:34:03","modified_gmt":"2022-05-13T04:34:03","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8journalctl%e6%9f%a5%e7%9c%8b%e6%97%a5%e5%bf%97","status":"publish","type":"post","link":"https:\/\/frogvps.com\/?p=139","title":{"rendered":"\u5982\u4f55\u4f7f\u7528journalctl\u67e5\u770b\u65e5\u5fd7"},"content":{"rendered":"\n<p>\u53ea\u7528journalctl\u4e00\u4e2a\u547d\u4ee4\uff0c\u67e5\u770b\u6240\u6709\u65e5\u5fd7\u3002<\/p>\n\n\n\n<p><strong>\u65e5\u5fd7\u7684\u914d\u7f6e\u6587\u4ef6<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/systemd\/journald.conf<\/code><\/pre>\n\n\n\n<p><strong>journalctl\u547d\u4ee4\u683c\u5f0f<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>journalctl &#91;OPTIONS...] &#91;MATCHES...]<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u9009\u9879\u8bf4\u660e<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>--no-full, --full, -l<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u5b57\u6bb5\u5185\u5bb9\u8d85\u957f\u5219\u4ee5\u7701\u7565\u53f7(&#8230;)\u622a\u65ad\u4ee5\u9002\u5e94\u5217\u5bbd\u3002 \u9ed8\u8ba4\u663e\u793a\u5b8c\u6574\u7684\u5b57\u6bb5\u5185\u5bb9(\u8d85\u957f\u7684\u90e8\u5206\u6362\u884c\u663e\u793a\u6216\u8005\u88ab\u5206\u9875\u5de5\u5177\u622a\u65ad)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-a, --all<\/code><\/pre>\n\n\n\n<p>\u5b8c\u6574\u663e\u793a\u6240\u6709\u5b57\u6bb5\u5185\u5bb9,\u5373\u4f7f\u5176\u4e2d\u5305\u542b\u4e0d\u53ef\u6253\u5370\u5b57\u7b26\u6216\u8005\u5b57\u6bb5\u5185\u5bb9\u8d85\u957f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-f, --follow<\/code><\/pre>\n\n\n\n<p>\u53ea\u663e\u793a\u6700\u65b0\u7684\u65e5\u5fd7\u9879\uff0c\u5e76\u4e14\u4e0d\u65ad\u663e\u793a\u65b0\u751f\u6210\u7684\u65e5\u5fd7\u9879\u3002 \u6b64\u9009\u9879\u9690\u542b\u4e86 -n \u9009\u9879\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-e, --pager-end<\/code><\/pre>\n\n\n\n<p>\u5728\u5206\u9875\u5de5\u5177\u5185\u7acb\u5373\u8df3\u8f6c\u5230\u65e5\u5fd7\u7684\u5c3e\u90e8\u3002 \u6b64\u9009\u9879\u9690\u542b\u4e86 -n1000\u4ee5\u786e\u4fdd\u5206\u9875\u5de5\u5177\u4e0d\u5fc5\u7f13\u5b58\u592a\u591a\u7684\u65e5\u5fd7\u884c\u3002\u4e0d\u8fc7\u8fd9\u4e2a\u9690\u542b\u7684\u884c\u6570\u53ef\u4ee5\u88ab\u660e\u786e\u8bbe\u7f6e\u7684 -n\u9009\u9879\u8986\u76d6\u3002 \u6ce8\u610f\uff0c\u6b64\u9009\u9879\u4ec5\u53ef\u7528\u4e8e less(1) \u5206\u9875\u5668\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-n, --lines=<\/code><\/pre>\n\n\n\n<p>\u9650\u5236\u663e\u793a\u6700\u65b0\u7684\u65e5\u5fd7\u884c\u6570\u3002 &#8211;pager-end \u4e0e &#8211;follow \u9690\u542b\u4e86\u6b64\u9009\u9879\u3002 \u6b64\u9009\u9879\u7684\u53c2\u6570\uff1a\u82e5\u4e3a\u6b63\u6574\u6570\u5219\u8868\u793a\u6700\u5927\u884c\u6570\uff1b \u82e5\u4e3a &#8220;all&#8221; \u5219\u8868\u793a\u4e0d\u9650\u5236\u884c\u6570\uff1b \u82e5\u4e0d\u8bbe\u53c2\u6570\u5219\u8868\u793a\u9ed8\u8ba4\u503c10\u884c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--no-tail<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u6240\u6709\u65e5\u5fd7\u884c\uff0c \u4e5f\u5c31\u662f\u7528\u4e8e\u64a4\u9500\u5df2\u6709\u7684 &#8211;lines= \u9009\u9879(\u5373\u4f7f\u4e0e -f \u8fde\u7528)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-r, --reverse<\/code><\/pre>\n\n\n\n<p>\u53cd\u8f6c\u65e5\u5fd7\u884c\u7684\u8f93\u51fa\u987a\u5e8f\uff0c \u4e5f\u5c31\u662f\u6700\u5148\u663e\u793a\u6700\u65b0\u7684\u65e5\u5fd7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-o, --output=<\/code><\/pre>\n\n\n\n<p>\u63a7\u5236\u65e5\u5fd7\u7684\u8f93\u51fa\u683c\u5f0f\u3002 \u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u9009\u9879\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>short<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u9ed8\u8ba4\u503c\uff0c \u5176\u8f93\u51fa\u683c\u5f0f\u4e0e\u4f20\u7edf\u7684 syslog[1] \u6587\u4ef6\u7684\u683c\u5f0f\u76f8\u4f3c\uff0c \u6bcf\u6761\u65e5\u5fd7\u4e00\u884c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>short-iso<\/code><\/pre>\n\n\n\n<p>\u4e0e short \u7c7b\u4f3c\uff0c\u53ea\u662f\u5c06\u65f6\u95f4\u6233\u5b57\u6bb5\u4ee5 ISO 8601 \u683c\u5f0f\u663e\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>short-precise<\/code><\/pre>\n\n\n\n<p>\u4e0e short \u7c7b\u4f3c\uff0c\u53ea\u662f\u5c06\u65f6\u95f4\u6233\u5b57\u6bb5\u7684\u79d2\u6570\u7cbe\u786e\u5230\u5fae\u79d2\u7ea7\u522b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>short-monotonic<\/code><\/pre>\n\n\n\n<p>\u4e0e short \u7c7b\u4f3c\uff0c\u53ea\u662f\u5c06\u65f6\u95f4\u6233\u5b57\u6bb5\u7684\u96f6\u503c\u4ece\u5185\u6838\u542f\u52a8\u65f6\u5f00\u59cb\u8ba1\u7b97\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>short-unix<\/code><\/pre>\n\n\n\n<p>\u4e0e short \u7c7b\u4f3c\uff0c\u53ea\u662f\u5c06\u65f6\u95f4\u6233\u5b57\u6bb5\u663e\u793a\u4e3a\u4ece&#8221;UNIX\u65f6\u95f4\u539f\u70b9&#8221;(1970-1-1 00:00:00UTC)\u4ee5\u6765\u7684\u79d2\u6570\u3002 \u7cbe\u786e\u5230\u5fae\u79d2\u7ea7\u522b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>verbose<\/code><\/pre>\n\n\n\n<p>\u4ee5\u7ed3\u6784\u5316\u7684\u683c\u5f0f\u663e\u793a\u6bcf\u6761\u65e5\u5fd7\u7684\u6240\u6709\u5b57\u6bb5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>export<\/code><\/pre>\n\n\n\n<p>\u5c06\u65e5\u5fd7\u5e8f\u5217\u5316\u4e3a\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41(\u5927\u90e8\u5206\u4f9d\u7136\u662f\u6587\u672c) \u4ee5\u9002\u7528\u4e8e\u5907\u4efd\u4e0e\u7f51\u7edc\u4f20\u8f93<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>json<\/code><\/pre>\n\n\n\n<p>\u5c06\u65e5\u5fd7\u9879\u6309\u7167JSON\u6570\u636e\u7ed3\u6784\u683c\u5f0f\u5316,\u6bcf\u6761\u65e5\u5fd7\u4e00\u884c(\u8be6\u89c1 Journal JSON Format[3]\u6587\u6863)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>json-pretty<\/code><\/pre>\n\n\n\n<p>\u5c06\u65e5\u5fd7\u9879\u6309\u7167JSON\u6570\u636e\u7ed3\u6784\u683c\u5f0f\u5316,\u4f46\u662f\u6bcf\u4e2a\u5b57\u6bb5\u4e00\u884c,\u4ee5\u4fbf\u4e8e\u4eba\u7c7b\u9605\u8bfb\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>json-sse<\/code><\/pre>\n\n\n\n<p>\u5c06\u65e5\u5fd7\u9879\u6309\u7167JSON\u6570\u636e\u7ed3\u6784\u683c\u5f0f\u5316\uff0c\u6bcf\u6761\u65e5\u5fd7\u4e00\u884c\uff0c\u4f46\u662f\u7528\u5927\u62ec\u53f7\u5305\u56f4\uff0c\u4ee5\u9002\u5e94Server-Sent Events[4] \u7684\u8981\u6c42\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a\u65e5\u5fd7\u7684\u5b9e\u9645\u5185\u5bb9,\u800c\u4e0d\u663e\u793a\u4e0e\u6b64\u65e5\u5fd7\u76f8\u5173\u7684\u4efb\u4f55\u5143\u6570\u636e(\u5305\u62ec\u65f6\u95f4\u6233)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--utc<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e16\u754c\u7edf\u4e00\u65f6\u95f4(UTC)\u8868\u793a\u65f6\u95f4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--no-hostname<\/code><\/pre>\n\n\n\n<p>\u4e0d\u663e\u793a\u6765\u6e90\u4e8e\u672c\u673a\u7684\u65e5\u5fd7\u6d88\u606f\u7684\u4e3b\u673a\u540d\u5b57\u6bb5\u3002 \u6b64\u9009\u9879\u4ec5\u5bf9 short\u7cfb\u5217\u8f93\u51fa\u683c\u5f0f(\u89c1\u4e0a\u6587)\u6709\u6548\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-x, --catalog<\/code><\/pre>\n\n\n\n<p>\u5728\u65e5\u5fd7\u7684\u8f93\u51fa\u4e2d\u589e\u52a0\u4e00\u4e9b\u89e3\u91ca\u6027\u7684\u77ed\u6587\u672c\uff0c\u4ee5\u5e2e\u52a9\u8fdb\u4e00\u6b65\u8bf4\u660e\u65e5\u5fd7\u7684\u542b\u4e49\u3001\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6848\u3001\u652f\u6301\u8bba\u575b\u3001 \u5f00\u53d1\u6587\u6863\u3001\u4ee5\u53ca\u5176\u4ed6\u4efb\u4f55\u5185\u5bb9\u3002 \u5e76\u975e\u6240\u6709\u65e5\u5fd7\u90fd\u6709\u8fd9\u4e9b\u989d\u5916\u7684\u5e2e\u52a9\u6587\u672c\uff0c\u8be6\u89c1 Message Catalog DeveloperDocumentation[5] \u6587\u6863\u3002 \u6ce8\u610f\uff0c\u5982\u679c\u8981\u5c06\u65e5\u5fd7\u8f93\u51fa\u7528\u4e8ebug\u62a5\u544a\uff0c\u8bf7\u4e0d\u8981\u4f7f\u7528\u6b64\u9009\u9879\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-q, --quiet<\/code><\/pre>\n\n\n\n<p>\u5f53\u4ee5\u666e\u901a\u7528\u6237\u8eab\u4efd\u8fd0\u884c\u65f6\uff0c \u4e0d\u663e\u793a\u4efb\u4f55\u8b66\u544a\u4fe1\u606f\u4e0e\u63d0\u793a\u4fe1\u606f\u3002 \u4f8b\u5982\uff1a&#8221;&#8211; Logs begin at&#8230;&#8221;, &#8220;&#8211; Reboot &#8211;&#8220;<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-m, --merge<\/code><\/pre>\n\n\n\n<p>\u6df7\u5408\u663e\u793a\u5305\u62ec\u8fdc\u7a0b\u65e5\u5fd7\u5728\u5185\u7684\u6240\u6709\u53ef\u89c1\u65e5\u5fd7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-b &#91;ID]&#91;\u00b1offset], --boot=&#91;ID]&#91;\u00b1offset]<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u7279\u5b9a\u4e8e\u67d0\u6b21\u542f\u52a8\u7684\u65e5\u5fd7\uff0c\u8fd9\u76f8\u5f53\u4e8e\u6dfb\u52a0\u4e86\u4e00\u4e2a &#8220;_BOOT_ID=&#8221; \u5339\u914d\u6761\u4ef6\u3002 \u5982\u679c\u53c2\u6570\u4e3a\u7a7a(\u4e5f\u5c31\u662f ID \u4e0e \u00b1offset \u90fd\u672a\u6307\u5b9a)\uff0c\u5219\u8868\u793a\u4ec5\u663e\u793a\u672c\u6b21\u542f\u52a8\u7684\u65e5\u5fd7\u3002 \u5982\u679c\u7701\u7565\u4e86 ID \uff0c\u90a3\u4e48\u5f53 \u00b1offset \u662f\u6b63\u6570\u7684\u65f6\u5019\uff0c\u5c06\u4ece\u65e5\u5fd7\u5934\u5f00\u59cb\u6b63\u5411\u67e5\u627e\uff0c \u5426\u5219(\u4e5f\u5c31\u662f\u4e3a\u8d1f\u6570\u6216\u96f6)\u5c06\u4ece\u65e5\u5fd7\u5c3e\u5f00\u59cb\u53cd\u54cd\u67e5\u627e\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--list-boots<\/code><\/pre>\n\n\n\n<p>\u5217\u51fa\u6bcf\u6b21\u542f\u52a8\u7684 \u5e8f\u53f7(\u4e5f\u5c31\u662f\u76f8\u5bf9\u4e8e\u672c\u6b21\u542f\u52a8\u7684\u504f\u79fb\u91cf)\u300132\u5b57\u7b26\u7684ID\u3001\u7b2c\u4e00\u6761\u65e5\u5fd7\u7684\u65f6\u95f4\u6233\u3001\u6700\u540e\u4e00\u6761\u65e5\u5fd7\u7684\u65f6\u95f4\u6233\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-k, --dmesg<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a\u5185\u6838\u65e5\u5fd7\u3002\u9690\u542b\u4e86 -b \u9009\u9879\u4ee5\u53ca &#8220;_TRANSPORT=kernel&#8221; \u5339\u914d\u9879\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-t, --identifier=SYSLOG_IDENTIFIER<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a syslog[1] \u8bc6\u522b\u7b26\u4e3a SYSLOG_IDENTIFIER \u7684\u65e5\u5fd7\u9879\u3002 \u53ef\u4ee5\u591a\u6b21\u4f7f\u7528\u8be5\u9009\u9879\u4ee5\u6307\u5b9a\u591a\u4e2a\u8bc6\u522b\u7b26\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-u, --unit=UNIT|PATTERN<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a\u5c5e\u4e8e\u7279\u5b9a\u5355\u5143\u7684\u65e5\u5fd7\u3002\u4e5f\u5c31\u662f\u5355\u5143\u540d\u79f0\u6b63\u597d\u7b49\u4e8e UNIT \u6216\u8005\u7b26\u5408 PATTERN\u6a21\u5f0f\u7684\u5355\u5143\u3002 \u8fd9\u76f8\u5f53\u4e8e\u6dfb\u52a0\u4e86\u4e00\u4e2a &#8220;_SYSTEMD_UNIT=UNIT&#8221; \u5339\u914d\u9879(\u5bf9\u4e8e UNIT \u6765\u8bf4)\uff0c\u6216\u4e00\u7ec4\u5339\u914d\u9879(\u5bf9\u4e8e PATTERN \u6765\u8bf4)\u3002 \u53ef\u4ee5\u591a\u6b21\u4f7f\u7528\u6b64\u9009\u9879\u4ee5\u6dfb\u52a0\u591a\u4e2a\u5e76\u5217\u7684\u5339\u914d\u6761\u4ef6(\u76f8\u5f53\u4e8e\u7528&#8221;OR&#8221;\u903b\u8f91\u8fde\u63a5)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--user-unit=<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a\u5c5e\u4e8e\u7279\u5b9a\u7528\u6237\u4f1a\u8bdd\u5355\u5143\u7684\u65e5\u5fd7\u3002\u76f8\u5f53\u4e8e\u540c\u65f6\u6dfb\u52a0\u4e86 &#8220;<em>SYSTEMD_USER_UNIT=&#8221; \u4e0e&#8221;<\/em>UID=&#8221; \u4e24\u4e2a\u5339\u914d\u6761\u4ef6\u3002 \u53ef\u4ee5\u591a\u6b21\u4f7f\u7528\u6b64\u9009\u9879\u4ee5\u6dfb\u52a0\u591a\u4e2a\u5e76\u5217\u7684\u5339\u914d\u6761\u4ef6(\u76f8\u5f53\u4e8e\u7528&#8221;OR&#8221;\u903b\u8f91\u8fde\u63a5)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-p, --priority=<\/code><\/pre>\n\n\n\n<p>\u6839\u636e\u65e5\u5fd7\u7b49\u7ea7(\u5305\u62ec\u7b49\u7ea7\u8303\u56f4)\u8fc7\u6ee4\u8f93\u51fa\u7ed3\u679c\u3002\u65e5\u5fd7\u7b49\u7ea7\u6570\u5b57\u4e0e\u5176\u540d\u79f0\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u5982\u4e0b(\u53c2\u89c1 syslog(3))\uff1a &#8220;emerg&#8221; (0), &#8220;alert&#8221; (1), &#8220;crit&#8221; (2), &#8220;err&#8221; (3),&#8221;warning&#8221; (4), &#8220;notice&#8221; (5), &#8220;info&#8221; (6), &#8220;debug&#8221; (7) \u3002\u82e5\u8bbe\u4e3a\u4e00\u4e2a\u5355\u72ec\u7684\u6570\u5b57\u6216\u65e5\u5fd7\u7b49\u7ea7\u540d\u79f0\uff0c\u5219\u8868\u793a\u4ec5\u663e\u793a\u5c0f\u4e8e\u6216\u7b49\u4e8e\u6b64\u7b49\u7ea7\u7684\u65e5\u5fd7(\u4e5f\u5c31\u662f\u91cd\u8981\u7a0b\u5ea6\u7b49\u4e8e\u6216\u9ad8\u4e8e\u6b64\u7b49\u7ea7\u7684\u65e5\u5fd7)\u3002\u82e5\u4f7f\u7528 FROM..TO.. \u8bbe\u7f6e\u4e00\u4e2a\u8303\u56f4\uff0c \u5219\u8868\u793a\u4ec5\u663e\u793a\u6307\u5b9a\u7684\u7b49\u7ea7\u8303\u56f4\u5185(\u542b\u4e24\u7aef)\u7684\u65e5\u5fd7\u3002\u6b64\u9009\u9879\u76f8\u5f53\u4e8e\u6dfb\u52a0\u4e86 &#8220;PRIORITY=&#8221;\u5339\u914d\u6761\u4ef6\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-c, --cursor=<\/code><\/pre>\n\n\n\n<p>\u4ece\u6307\u5b9a\u7684\u6e38\u6807(cursor)\u5f00\u59cb\u663e\u793a\u65e5\u5fd7\u3002 [\u63d0\u793a]\u6bcf\u6761\u65e5\u5fd7\u90fd\u6709\u4e00\u4e2a&#8221;__CURSOR&#8221;\u5b57\u6bb5\uff0c\u7c7b\u4f3c\u4e8e\u8be5\u6761\u65e5\u5fd7\u7684\u6307\u7eb9\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--after-cursor=<\/code><\/pre>\n\n\n\n<p>\u4ece\u6307\u5b9a\u7684\u6e38\u6807(cursor)\u4e4b\u540e\u5f00\u59cb\u663e\u793a\u65e5\u5fd7\u3002 \u5982\u679c\u4f7f\u7528\u4e86 &#8211;show-cursor \u9009\u9879\uff0c\u5219\u4e5f\u4f1a\u663e\u793a\u6e38\u6807\u672c\u8eab\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--show-cursor<\/code><\/pre>\n\n\n\n<p>\u5728\u6700\u540e\u4e00\u6761\u65e5\u5fd7\u4e4b\u540e\u663e\u793a\u6e38\u6807\uff0c \u7c7b\u4f3c\u4e0b\u9762\u8fd9\u6837\uff0c\u4ee5&#8221;&#8211;&#8220;\u5f00\u5934\uff1a &#8212; cursor: s=0639&#8230;<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-S, --since=, -U, --until=<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u665a\u4e8e\u6307\u5b9a\u65f6\u95f4(&#8211;since=)\u7684\u65e5\u5fd7\u3001\u663e\u793a\u65e9\u4e8e\u6307\u5b9a\u65f6\u95f4(&#8211;until=)\u7684\u65e5\u5fd7\u3002 \u53c2\u6570\u7684\u683c\u5f0f\u7c7b\u4f3c &#8220;2012-10-30 18:17:16&#8221; \u8fd9\u6837\u3002 \u5982\u679c\u7701\u7565\u4e86&#8221;\u65f6:\u5206:\u79d2&#8221;\u90e8\u5206\uff0c\u5219\u76f8\u5f53\u4e8e\u8bbe\u4e3a &#8220;00:00:00&#8221; \u3002 \u5982\u679c\u4ec5\u7701\u7565\u4e86&#8221;\u79d2&#8221;\u7684\u90e8\u5206\u5219\u76f8\u5f53\u4e8e\u8bbe\u4e3a &#8220;:00&#8221; \u3002 \u5982\u679c\u7701\u7565\u4e86&#8221;\u5e74-\u6708-\u65e5&#8221;\u90e8\u5206\uff0c \u5219\u76f8\u5f53\u4e8e\u8bbe\u4e3a\u5f53\u524d\u65e5\u671f\u3002 \u9664\u4e86&#8221;\u5e74-\u6708-\u65e5 \u65f6:\u5206:\u79d2&#8221;\u683c\u5f0f\uff0c\u53c2\u6570\u8fd8\u53ef\u4ee5\u8fdb\u884c\u5982\u4e0b\u8bbe\u7f6e\uff1a \u8bbe\u4e3a &#8220;yesterday&#8221;, &#8220;today&#8221;, &#8220;tomorrow&#8221;\u4ee5\u8868\u793a\u90a3\u4e00\u5929\u7684\u96f6\u70b9(00:00:00)\u3002 \u8bbe\u4e3a &#8220;now&#8221; \u4ee5\u8868\u793a\u5f53\u524d\u65f6\u95f4\u3002 \u53ef\u4ee5\u5728&#8221;\u5e74-\u6708-\u65e5 \u65f6:\u5206:\u79d2&#8221;\u524d\u52a0\u4e0a &#8220;-&#8220;(\u524d\u79fb) \u6216 &#8220;+&#8221;(\u540e\u79fb)\u524d\u7f00\u4ee5\u8868\u793a\u76f8\u5bf9\u4e8e\u5f53\u524d\u65f6\u95f4\u7684\u504f\u79fb\u3002 \u67e5\u770b\u5e2e\u52a9\uff1aman 7 time<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-F, --field=<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u6240\u6709\u65e5\u5fd7\u4e2d\u67d0\u4e2a\u5b57\u6bb5\u7684\u6240\u6709\u53ef\u80fd\u503c\u3002\u7c7b\u4f3c\u4e8eSQL\u8bed\u53e5\uff1a&#8221;SELECT DISTINCT\u67d0\u5b57\u6bb5 FROM \u5168\u90e8\u65e5\u5fd7&#8221;<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-N, --fields<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u6240\u6709\u65e5\u5fd7\u5b57\u6bb5\u7684\u540d\u79f0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--system, --user<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a\u7cfb\u7edf\u670d\u52a1\u4e0e\u5185\u6838\u7684\u65e5\u5fd7(&#8211;system)\u3001 \u4ec5\u663e\u793a\u5f53\u524d\u7528\u6237\u7684\u65e5\u5fd7(&#8211;user)\u3002 \u5982\u679c\u4e24\u4e2a\u9009\u9879\u90fd\u672a\u6307\u5b9a\uff0c\u5219\u663e\u793a\u5f53\u524d\u7528\u6237\u7684\u6240\u6709\u53ef\u89c1\u65e5\u5fd7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-M, --machine=<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u6765\u81ea\u4e8e\u6b63\u5728\u8fd0\u884c\u7684\u3001\u7279\u5b9a\u540d\u79f0\u7684\u672c\u5730\u5bb9\u5668\u7684\u65e5\u5fd7\u3002\u53c2\u6570\u5fc5\u987b\u662f\u4e00\u4e2a\u672c\u5730\u5bb9\u5668\u7684\u540d\u79f0\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-D DIR, --directory=DIR<\/code><\/pre>\n\n\n\n<p>\u4ec5\u663e\u793a\u6765\u81ea\u4e8e\u7279\u5b9a\u76ee\u5f55\u4e2d\u7684\u65e5\u5fd7\uff0c\u800c\u4e0d\u662f\u9ed8\u8ba4\u7684\u8fd0\u884c\u65f6\u548c\u7cfb\u7edf\u65e5\u5fd7\u76ee\u5f55\u4e2d\u7684\u65e5\u5fd7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--file=GLOB<\/code><\/pre>\n\n\n\n<p>GLOB \u662f\u4e00\u4e2a\u53ef\u4ee5\u5305\u542b&#8221;?&#8221;\u4e0e&#8221;*&#8221;\u7684\u6587\u4ef6\u8def\u5f84\u5339\u914d\u6a21\u5f0f\u3002\u8868\u793a\u4ec5\u663e\u793a\u6765\u81ea\u4e0e\u6307\u5b9a\u7684GLOB\u6a21\u5f0f\u5339\u914d\u7684\u6587\u4ef6\u4e2d\u7684\u65e5\u5fd7\uff0c\u800c\u4e0d\u662f\u9ed8\u8ba4\u7684\u8fd0\u884c\u65f6\u548c\u7cfb\u7edf\u65e5\u5fd7\u76ee\u5f55\u4e2d\u7684\u65e5\u5fd7\u3002\u53ef\u4ee5\u591a\u6b21\u4f7f\u7528\u6b64\u9009\u9879\u4ee5\u6307\u5b9a\u591a\u4e2a\u5339\u914d\u6a21\u5f0f(\u591a\u4e2a\u6a21\u5f0f\u4e4b\u95f4\u7528&#8221;OR&#8221;\u903b\u8f91\u8fde\u63a5)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--root=ROOT<\/code><\/pre>\n\n\n\n<p>\u5728\u5bf9\u65e5\u5fd7\u8fdb\u884c\u64cd\u4f5c\u65f6\uff0c \u5c06 ROOT \u89c6\u4e3a\u7cfb\u7edf\u7684\u6839\u76ee\u5f55\u3002 \u4f8b\u5982 &#8211;update-catalog \u5c06\u4f1a\u521b\u5efa ROOT\/var\/lib\/systemd\/catalog\/database<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--new-id128<\/code><\/pre>\n\n\n\n<p>\u6b64\u9009\u9879\u5e76\u4e0d\u7528\u4e8e\u663e\u793a\u65e5\u5fd7\u5185\u5bb9\uff0c \u800c\u662f\u7528\u4e8e\u91cd\u65b0\u751f\u6210\u4e00\u4e2a\u6807\u8bc6\u65e5\u5fd7\u5206\u7c7b\u7684 128-bit ID \u3002 \u6b64\u9009\u9879\u7684\u76ee\u7684\u5728\u4e8e \u5e2e\u52a9\u5f00\u53d1\u8005\u751f\u6210\u6613\u4e8e\u8fa8\u522b\u7684\u65e5\u5fd7\u6d88\u606f\uff0c\u4ee5\u65b9\u4fbf\u8c03\u8bd5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--header<\/code><\/pre>\n\n\n\n<p>\u6b64\u9009\u9879\u5e76\u4e0d\u7528\u4e8e\u663e\u793a\u65e5\u5fd7\u5185\u5bb9\uff0c\u800c\u662f\u7528\u4e8e\u663e\u793a\u65e5\u5fd7\u6587\u4ef6\u5185\u90e8\u7684\u5934\u4fe1\u606f(\u7c7b\u4f3c\u4e8e\u5143\u6570\u636e)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--disk-usage<\/code><\/pre>\n\n\n\n<p>\u6b64\u9009\u9879\u5e76\u4e0d\u7528\u4e8e\u663e\u793a\u65e5\u5fd7\u5185\u5bb9\uff0c \u800c\u662f\u7528\u4e8e\u663e\u793a\u6240\u6709\u65e5\u5fd7\u6587\u4ef6(\u5f52\u6863\u6587\u4ef6\u4e0e\u6d3b\u52a8\u6587\u4ef6)\u7684\u78c1\u76d8\u5360\u7528\u603b\u91cf\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--vacuum-size=, --vacuum-time=, --vacuum-files=<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e9b\u9009\u9879\u5e76\u4e0d\u7528\u4e8e\u663e\u793a\u65e5\u5fd7\u5185\u5bb9\uff0c\u800c\u662f\u7528\u4e8e\u6e05\u7406\u65e5\u5fd7\u5f52\u6863\u6587\u4ef6(\u5e76\u4e0d\u6e05\u7406\u6d3b\u52a8\u7684\u65e5\u5fd7\u6587\u4ef6)\uff0c \u4ee5\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--vacuum-size=<\/code><\/pre>\n\n\n\n<p>\u53ef\u7528\u4e8e\u9650\u5236\u5f52\u6863\u6587\u4ef6\u7684\u6700\u5927\u78c1\u76d8\u4f7f\u7528\u91cf (\u53ef\u4ee5\u4f7f\u7528 &#8220;K&#8221;, &#8220;M&#8221;, &#8220;G&#8221;, &#8220;T&#8221;\u540e\u7f00)\uff1b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--vacuum-time=<\/code><\/pre>\n\n\n\n<p>\u53ef\u7528\u4e8e\u6e05\u9664\u6307\u5b9a\u65f6\u95f4\u4e4b\u524d\u7684\u5f52\u6863 (\u53ef\u4ee5\u4f7f\u7528 &#8220;s&#8221;, &#8220;m&#8221;, &#8220;h&#8221;,&#8221;days&#8221;, &#8220;weeks&#8221;, &#8220;months&#8221;, &#8220;years&#8221; \u540e\u7f00)\uff1b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--vacuum-files=<\/code><\/pre>\n\n\n\n<p>\u53ef\u7528\u4e8e\u9650\u5236\u65e5\u5fd7\u5f52\u6863\u6587\u4ef6\u7684\u6700\u5927\u6570\u91cf\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f\uff0c&#8211;vacuum-size= \u5bf9 &#8211;disk-usage\u7684\u8f93\u51fa\u4ec5\u6709\u95f4\u63a5\u6548\u679c\uff0c \u56e0\u4e3a &#8211;disk-usage \u8f93\u51fa\u7684\u662f\u5f52\u6863\u65e5\u5fd7\u4e0e\u6d3b\u52a8\u65e5\u5fd7\u7684\u603b\u91cf\u3002 \u540c\u6837\uff0c&#8211;vacuum-files= \u4e5f\u672a\u5fc5\u4e00\u5b9a\u4f1a\u51cf\u5c11\u65e5\u5fd7\u6587\u4ef6\u7684\u603b\u6570\uff0c\u56e0\u4e3a\u5b83\u540c\u6837\u4ec5\u4f5c\u7528\u4e8e\u5f52\u6863\u6587\u4ef6\u800c\u4e0d\u4f1a\u5220\u9664\u6d3b\u52a8\u7684\u65e5\u5fd7\u6587\u4ef6\u3002 \u6b64\u4e09\u4e2a\u9009\u9879\u53ef\u4ee5\u540c\u65f6\u4f7f\u7528\uff0c\u4ee5\u540c\u65f6\u4ece\u4e09\u4e2a\u7ef4\u5ea6\u53bb\u9650\u5236\u5f52\u6863\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>\u82e5\u5c06\u67d0\u9009\u9879\u8bbe\u4e3a\u96f6\uff0c\u5219\u8868\u793a\u53d6\u6d88\u6b64\u9009\u9879\u7684\u9650\u5236\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--list-catalog &#91;128-bit-ID...]<\/code><\/pre>\n\n\n\n<p>\u7b80\u8981\u5217\u51fa\u65e5\u5fd7\u5206\u7c7b\u4fe1\u606f\uff0c \u5176\u4e2d\u5305\u62ec\u5bf9\u5206\u7c7b\u4fe1\u606f\u7684\u7b80\u8981\u63cf\u8ff0\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u660e\u786e\u6307\u5b9a\u4e86\u5206\u7c7bID(128-bit-ID)\uff0c \u90a3\u4e48\u4ec5\u663e\u793a\u6307\u5b9a\u7684\u5206\u7c7b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--dump-catalog &#91;128-bit-ID...]<\/code><\/pre>\n\n\n\n<p>\u8be6\u7ec6\u5217\u51fa\u65e5\u5fd7\u5206\u7c7b\u4fe1\u606f (\u683c\u5f0f\u4e0e .catalog \u6587\u4ef6\u76f8\u540c)\u3002 \u5982\u679c\u660e\u786e\u6307\u5b9a\u4e86\u5206\u7c7bID(128-bit-ID)\uff0c \u90a3\u4e48\u4ec5\u663e\u793a\u6307\u5b9a\u7684\u5206\u7c7b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--update-catalog<\/code><\/pre>\n\n\n\n<p>\u66f4\u65b0\u65e5\u5fd7\u5206\u7c7b\u7d22\u5f15\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002 \u6bcf\u5f53\u5b89\u88c5\u3001\u5220\u9664\u3001\u66f4\u65b0\u4e86\u5206\u7c7b\u6587\u4ef6\uff0c\u90fd\u9700\u8981\u6267\u884c\u4e00\u6b21\u6b64\u52a8\u4f5c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--setup-keys<\/code><\/pre>\n\n\n\n<p>\u6b64\u9009\u9879\u5e76\u4e0d\u7528\u4e8e\u663e\u793a\u65e5\u5fd7\u5185\u5bb9\uff0c \u800c\u662f\u7528\u4e8e\u751f\u6210\u4e00\u4e2a\u65b0\u7684FSS(Forward SecureSealing)\u5bc6\u94a5\u5bf9\u3002 \u6b64\u5bc6\u94a5\u5bf9\u5305\u542b\u4e00\u4e2a&#8221;sealing key&#8221;\u4e0e\u4e00\u4e2a&#8221;verification key&#8221;\u3002&#8221;sealing key&#8221;\u4fdd\u5b58\u5728\u672c\u5730\u65e5\u5fd7\u76ee\u5f55\u4e2d\uff0c \u800c&#8221;verification key&#8221;\u5219\u5fc5\u987b\u4fdd\u5b58\u5728\u5176\u4ed6\u5730\u65b9\u3002\u8be6\u89c1 journald.conf(5) \u4e2d\u7684 Seal= \u9009\u9879\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--force<\/code><\/pre>\n\n\n\n<p>\u4e0e &#8211;setup-keys \u8fde\u7528\uff0c \u8868\u793a\u5373\u4f7f\u5df2\u7ecf\u914d\u7f6e\u4e86FSS(Forward Secure Sealing)\u5bc6\u94a5\u5bf9\uff0c\u4e5f\u8981\u5f3a\u5236\u91cd\u65b0\u751f\u6210\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--interval=<\/code><\/pre>\n\n\n\n<p>\u4e0e &#8211;setup-keys \u8fde\u7528\uff0c\u6307\u5b9a&#8221;sealing key&#8221;\u7684\u53d8\u5316\u95f4\u9694\u3002 \u8f83\u77ed\u7684\u65f6\u95f4\u95f4\u9694\u4f1a\u5bfc\u81f4\u5360\u7528\u66f4\u591a\u7684CPU\u8d44\u6e90\uff0c \u4f46\u662f\u80fd\u591f\u51cf\u5c11\u672a\u68c0\u6d4b\u7684\u65e5\u5fd7\u53d8\u5316\u65f6\u95f4\u3002\u9ed8\u8ba4\u503c\u662f 15min\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--verify<\/code><\/pre>\n\n\n\n<p>\u68c0\u67e5\u65e5\u5fd7\u6587\u4ef6\u7684\u5185\u5728\u4e00\u81f4\u6027\u3002 \u5982\u679c\u65e5\u5fd7\u6587\u4ef6\u5728\u751f\u6210\u65f6\u5f00\u542f\u4e86FSS\u7279\u6027\uff0c \u5e76\u4e14\u4f7f\u7528&#8211;verify-key= \u6307\u5b9a\u4e86FSS\u7684&#8221;verification key&#8221;\uff0c\u90a3\u4e48\uff0c\u540c\u65f6\u8fd8\u5c06\u9a8c\u8bc1\u65e5\u5fd7\u6587\u4ef6\u7684\u771f\u5b9e\u6027\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--verify-key=<\/code><\/pre>\n\n\n\n<p>\u4e0e &#8211;verify \u9009\u9879\u8fde\u7528\uff0c \u6307\u5b9aFSS\u7684&#8221;verification key&#8221;\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--sync<\/code><\/pre>\n\n\n\n<p>\u8981\u6c42\u65e5\u5fd7\u5b88\u62a4\u8fdb\u7a0b\u5c06\u6240\u6709\u672a\u5199\u5165\u78c1\u76d8\u7684\u65e5\u5fd7\u6570\u636e\u5237\u5199\u5230\u78c1\u76d8\u4e0a\uff0c\u5e76\u4e14\u4e00\u76f4\u963b\u585e\u5230\u5237\u5199\u64cd\u4f5c\u5b9e\u9645\u5b8c\u6210\u4e4b\u540e\u624d\u8fd4\u56de\u3002 \u56e0\u6b64\u8be5\u547d\u4ee4\u53ef\u4ee5\u4fdd\u8bc1\u5f53\u5b83\u8fd4\u56de\u7684\u65f6\u5019\uff0c\u6240\u6709\u5728\u8c03\u7528\u6b64\u547d\u4ee4\u7684\u65f6\u95f4\u70b9\u4e4b\u524d\u7684\u65e5\u5fd7\uff0c \u5df2\u7ecf\u5168\u90e8\u5b89\u5168\u7684\u5199\u5230\u4e86\u78c1\u76d8\u4e2d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--flush<\/code><\/pre>\n\n\n\n<p>\u8981\u6c42\u65e5\u5fd7\u5b88\u62a4\u8fdb\u7a0b \u5c06 \/run\/log\/journal \u4e2d\u7684\u65e5\u5fd7\u6570\u636e\u5237\u5199\u5230 \/var\/log\/journal \u4e2d(\u5982\u679c\u6301\u4e45\u5b58\u50a8\u8bbe\u5907\u5f53\u524d\u53ef\u7528\u7684\u8bdd)\u3002 \u6b64\u64cd\u4f5c\u4f1a\u4e00\u76f4\u963b\u585e\u5230\u64cd\u4f5c\u5b8c\u6210\u4e4b\u540e\u624d\u4f1a\u8fd4\u56de\uff0c\u56e0\u6b64\u53ef\u4ee5\u786e\u4fdd\u5728\u8be5\u547d\u4ee4\u8fd4\u56de\u65f6\uff0c \u6570\u636e\u8f6c\u79fb\u786e\u5b9e\u5df2\u7ecf\u5b8c\u6210\u3002\u6ce8\u610f\uff0c\u6b64\u547d\u4ee4\u4ec5\u6267\u884c\u4e00\u4e2a\u5355\u72ec\u7684\u3001\u4e00\u6b21\u6027\u7684\u8f6c\u79fb\u52a8\u4f5c\uff0c \u82e5\u6ca1\u6709\u6570\u636e\u9700\u8981\u8f6c\u79fb\uff0c\u5219\u6b64\u547d\u4ee4\u4ec0\u4e48\u4e5f\u4e0d\u505a\uff0c \u5e76\u4e14\u4e5f\u4f1a\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u64cd\u4f5c\u5df2\u6b63\u786e\u5b8c\u6210\u7684\u8fd4\u56de\u503c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--rotate<\/code><\/pre>\n\n\n\n<p>\u8981\u6c42\u65e5\u5fd7\u5b88\u62a4\u8fdb\u7a0b\u6eda\u52a8\u65e5\u5fd7\u6587\u4ef6\u3002\u6b64\u547d\u4ee4\u4f1a\u4e00\u76f4\u963b\u585e\u5230\u6eda\u52a8\u5b8c\u6210\u4e4b\u540e\u624d\u4f1a\u8fd4\u56de\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-h, --help<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u7b80\u77ed\u7684\u5e2e\u52a9\u4fe1\u606f\u5e76\u9000\u51fa\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--version<\/code><\/pre>\n\n\n\n<p>\u663e\u793a\u7b80\u77ed\u7684\u7248\u672c\u4fe1\u606f\u5e76\u9000\u51fa\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--no-pager<\/code><\/pre>\n\n\n\n<p>\u4e0d\u5c06\u7a0b\u5e8f\u7684\u8f93\u51fa\u5185\u5bb9\u7ba1\u9053(pipe)\u7ed9\u5206\u9875\u7a0b\u5e8f<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">journalctl\u7684\u5e38\u89c1\u7528\u6cd5<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u67e5\u770b\u6240\u6709\u65e5\u5fd7\uff08\u9ed8\u8ba4\u60c5\u51b5\u4e0b \uff0c\u53ea\u4fdd\u5b58\u672c\u6b21\u542f\u52a8\u7684\u65e5\u5fd7\uff09<br>journalctl<br>#\u67e5\u770b\u5185\u6838\u65e5\u5fd7\uff08\u4e0d\u663e\u793a\u5e94\u7528\u65e5\u5fd7\uff09<br>journalctl -k<br>#\u67e5\u770b\u7cfb\u7edf\u672c\u6b21\u542f\u52a8\u7684\u65e5\u5fd7<br>journalctl -b<br>journalctl -b -0<br>#\u67e5\u770b\u4e0a\u4e00\u6b21\u542f\u52a8\u7684\u65e5\u5fd7\uff08\u9700\u66f4\u6539\u8bbe\u7f6e\uff09<br>journalctl -b -1<br>#\u67e5\u770b\u6307\u5b9a\u65f6\u95f4\u7684\u65e5\u5fd7<br>journalctl --since=\"2017-10-30 18:10:30\"<br>journalctl --since \"20 min ago\"<br>journalctl --since yesterday<br>journalctl --since \"2022-05-12\" --until \"2022-05-13 03:00\"<br>journalctl --since 09:00 --until \"1 hour ago\"<br>#\u663e\u793a\u5c3e\u90e8\u7684\u6700\u65b010\u884c\u65e5\u5fd7<br>journalctl -n<br>#\u663e\u793a\u5c3e\u90e8\u6307\u5b9a\u884c\u6570\u7684\u65e5\u5fd7<br>journalctl -n 20<br>#\u5b9e\u65f6\u6eda\u52a8\u663e\u793a\u6700\u65b0\u65e5\u5fd7<br>journalctl -f<br>#\u67e5\u770b\u6307\u5b9a\u670d\u52a1\u7684\u65e5\u5fd7<br>journalctl \/usr\/lib\/systemd\/systemd<br>#\u67e5\u770b\u6307\u5b9a\u8fdb\u7a0b\u7684\u65e5\u5fd7<br>journalctl _PID=1<br>#\u67e5\u770b\u67d0\u4e2a\u8def\u5f84\u7684\u811a\u672c\u7684\u65e5\u5fd7<br>journalctl \/usr\/bin\/bash<br>#\u67e5\u770b\u6307\u5b9a\u7528\u6237\u7684\u65e5\u5fd7<br>journalctl _UID=33 --since today<br>#\u67e5\u770b\u67d0\u4e2a Unit \u7684\u65e5\u5fd7<br>journalctl -u nginx.service<br>journalctl -u nginx.service --since today<br>#\u5b9e\u65f6\u6eda\u52a8\u663e\u793a\u67d0\u4e2a Unit \u7684\u6700\u65b0\u65e5\u5fd7<br>journalctl -u nginx.service -f<br>#\u5408\u5e76\u663e\u793a\u591a\u4e2a Unit \u7684\u65e5\u5fd7<br>journalctl -u nginx.service -u php-fpm.service --since today<br>#\u67e5\u770b\u6307\u5b9a\u4f18\u5148\u7ea7\uff08\u53ca\u5176\u4ee5\u4e0a\u7ea7\u522b\uff09\u7684\u65e5\u5fd7\uff0c\u5171\u67098\u7ea7<br>0: emerg<br>1: alert<br>2: crit<br>3: err<br>4: warning<br>5: notice<br>6: info<br>7: debug<br>journalctl -p err -b<br>#\u65e5\u5fd7\u9ed8\u8ba4\u5206\u9875\u8f93\u51fa\uff0c--no-pager \u6539\u4e3a\u6b63\u5e38\u7684\u6807\u51c6\u8f93\u51fa<br>journalctl --no-pager<br>#\u65e5\u5fd7\u7ba1\u7406journalctl<br>#\u4ee5 JSON \u683c\u5f0f\uff08\u5355\u884c\uff09\u8f93\u51fa<br>journalctl -b -u nginx.service -o json<br>#\u4ee5 JSON \u683c\u5f0f\uff08\u591a\u884c\uff09\u8f93\u51fa\uff0c\u53ef\u8bfb\u6027\u66f4\u597d<br>journalctl -b -u nginx.serviceqq -o json-pretty<br>#\u663e\u793a\u65e5\u5fd7\u5360\u636e\u7684\u786c\u76d8\u7a7a\u95f4<br>journalctl --disk-usage<br>#\u6307\u5b9a\u65e5\u5fd7\u6587\u4ef6\u5360\u636e\u7684\u6700\u5927\u7a7a\u95f4<br>journalctl --vacuum-size=1G<br>#\u6307\u5b9a\u65e5\u5fd7\u6587\u4ef6\u4fdd\u5b58\u591a\u4e45<br>journalctl --vacuum-time=1years<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u53ea\u7528journalctl\u4e00\u4e2a\u547d\u4ee4\uff0c\u67e5\u770b\u6240\u6709\u65e5\u5fd7\u3002 \u65e5\u5fd7\u7684\u914d\u7f6e\u6587\u4ef6 journalctl\u547d\u4ee4\u683c\u5f0f \u9009\u9879\u8bf4\u660e \u5982\u679c\u5b57\u6bb5\u5185\u5bb9\u8d85\u957f\u5219\u4ee5\u7701\u7565\u53f7(&#8230;)\u622a\u65ad\u4ee5\u9002\u5e94\u5217\u5bbd\u3002 \u9ed8\u8ba4\u663e\u793a\u5b8c\u6574\u7684\u5b57\u6bb5\u5185\u5bb9(\u8d85\u957f\u7684\u90e8\u5206\u6362\u884c\u663e\u793a\u6216\u8005\u88ab\u5206\u9875\u5de5\u5177\u622a\u65ad)\u3002 \u5b8c\u6574\u663e&#8230;<\/p>\n","protected":false},"author":1,"featured_media":143,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"topic":[],"class_list":["post-139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=139"}],"version-history":[{"count":1,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/139\/revisions"}],"predecessor-version":[{"id":140,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/139\/revisions\/140"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/media\/143"}],"wp:attachment":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=139"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftopic&post=139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}