{"id":683,"date":"2026-08-24T05:29:30","date_gmt":"2026-08-23T20:29:30","guid":{"rendered":"https:\/\/www.marchboy.xyz\/wordpress\/archives\/683"},"modified":"2026-08-24T05:29:30","modified_gmt":"2026-08-23T20:29:30","slug":"journalctl-u-%e3%81%a8%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.marchboy.xyz\/wordpress\/archives\/683","title":{"rendered":"journalctl -u \u3068\u306f\uff1f"},"content":{"rendered":"<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p><strong>journalctl<\/strong>\u306f systemd \u306e\u30ed\u30b0\u95b2\u89a7\u30c4\u30fc\u30eb\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067\u3082 <code>-u<\/code> \u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u3001\u7279\u5b9a\u306e\u30e6\u30cb\u30c3\u30c8\uff08\u30b5\u30fc\u30d3\u30b9\u3084\u30bf\u30a4\u30de\u30fc\uff09\u306b\u7d5e\u3063\u3066\u30ed\u30b0\u3092\u53d6\u5f97\u3059\u308b\u969b\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f <code>journalctl -u<\/code> \u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u5fdc\u7528\u4f8b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2>\u57fa\u672c\u69cb\u6587<\/h2>\n<p><code>journalctl -u <em>\u30e6\u30cb\u30c3\u30c8\u540d<\/em><\/code> \u3068\u5b9f\u884c\u3059\u308b\u3060\u3051\u3067\u3001\u6307\u5b9a\u3057\u305f\u30e6\u30cb\u30c3\u30c8\u306b\u95a2\u9023\u3059\u308b\u30ed\u30b0\u304c\u3059\u3079\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre><code>journalctl -u nginx.service<\/code><\/pre>\n<p>\u4e0a\u8a18\u4f8b\u306f <strong>nginx.service<\/strong> \u306e\u30ed\u30b0\u3092\u5168\u3066\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n<h2>\u4e3b\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h2>\n<p>\u30e6\u30cb\u30c3\u30c8\u5358\u4f4d\u306e\u30ed\u30b0\u53d6\u5f97\u306f\u3001\u4ed6\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3055\u3089\u306b\u4f7f\u3044\u52dd\u624b\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>-b<\/code>\uff1a\u73fe\u5728\u306e\u30d6\u30fc\u30c8\u8d77\u52d5\u5206\u3060\u3051\u3092\u8868\u793a<br \/>\u4f8b: <code>journalctl -u nginx.service -b<\/code><\/li>\n<li><code>--since<\/code> \/ <code>--until<\/code>\uff1a\u671f\u9593\u6307\u5b9a<br \/>\u4f8b: <code>journalctl -u nginx.service --since \"2024-08-01\" --until \"2024-08-23 12:00\"<\/code><\/li>\n<li><code>-f<\/code>\uff1a\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u8ffd\u8de1\uff08tail -f \u76f8\u5f53\uff09<br \/>\u4f8b: <code>journalctl -u nginx.service -f<\/code><\/li>\n<\/ul>\n<h2>\u30e6\u30cb\u30c3\u30c8\u540d\u306e\u66f8\u304d\u65b9<\/h2>\n<p>\u30e6\u30cb\u30c3\u30c8\u540d\u306f\u62e1\u5f35\u5b50\u3092\u542b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u4f8b: <code>nginx.service<\/code>, <code>cron.timer<\/code>, <code>docker.socket<\/code> \u306a\u3069\u3002<\/p>\n<h2>\u8907\u6570\u30e6\u30cb\u30c3\u30c8\u306e\u30ed\u30b0\u3092\u540c\u6642\u306b\u53d6\u5f97<\/h2>\n<p>\u8907\u6570\u306e\u30e6\u30cb\u30c3\u30c8\u3092\u5bfe\u8c61\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u3001<code>-u<\/code> \u3092\u8907\u6570\u56de\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<pre><code>journalctl -u nginx.service -u redis.service<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f <strong>nginx<\/strong> \u3068 <strong>redis<\/strong> \u306e\u4e21\u65b9\u306e\u30ed\u30b0\u3092\u7d71\u5408\u3057\u3066\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n<h2>\u5b9f\u52d9\u3067\u306e\u6d3b\u7528\u4f8b<\/h2>\n<ul>\n<li>\u30b5\u30fc\u30d3\u30b9\u969c\u5bb3\u6642\u306e\u539f\u56e0\u8abf\u67fb\uff1a<code>journalctl -u myapp.service -b<\/code> \u3067\u6700\u65b0\u8d77\u52d5\u5206\u306e\u30ed\u30b0\u3092\u78ba\u8a8d\u3002<\/li>\n<li>\u5b9a\u671f\u30b8\u30e7\u30d6\u306e\u7d50\u679c\u78ba\u8a8d\uff1a<code>journalctl -u backup.timer --since \"yesterday\"<\/code> \u3067\u6628\u65e5\u4ee5\u964d\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7d50\u679c\u3092\u53d6\u5f97\u3002<\/li>\n<li>\u958b\u767a\u74b0\u5883\u3067\u30c7\u30d0\u30c3\u30b0\uff1a<code>journalctl -u nginx.service -f<\/code> \u3067\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306b\u30ed\u30b0\u3092\u8ffd\u3044\u306a\u304c\u3089\u8a2d\u5b9a\u5909\u66f4\u3092\u30c6\u30b9\u30c8\u3002<\/li>\n<\/ul>\n<h2>\u307e\u3068\u3081<\/h2>\n<p><code>journalctl -u<\/code> \u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u81a8\u5927\u306a\u30ed\u30b0\u304b\u3089\u7279\u5b9a\u306e\u30e6\u30cb\u30c3\u30c8\u306b\u95a2\u3059\u308b\u60c5\u5831\u3060\u3051\u3092\u62bd\u51fa\u3067\u304d\u308b\u5f37\u529b\u306a\u30d5\u30a3\u30eb\u30bf\u3067\u3059\u3002<strong>\u30d6\u30fc\u30c8\u5358\u4f4d<\/strong>\u3084<strong>\u671f\u9593\u6307\u5b9a<\/strong>\u3001<strong>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u8ffd\u8de1<\/strong>\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u904b\u7528\u76e3\u8996\u304c\u683c\u6bb5\u306b\u52b9\u7387\u5316\u3057\u307e\u3059\u3002\u305c\u3072\u5b9f\u969b\u306e\u696d\u52d9\u3067\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b journalctl\u306f systemd \u306e\u30ed\u30b0\u95b2\u89a7\u30c4\u30fc\u30eb\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067\u3082 -u \u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u3001\u7279\u5b9a\u306e\u30e6\u30cb\u30c3\u30c8\uff08\u30b5\u30fc\u30d3\u30b9\u3084\u30bf\u30a4\u30de\u30fc\uff09\u306b\u7d5e\u3063\u3066\u30ed\u30b0\u3092\u53d6\u5f97\u3059\u308b\u969b\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f journalctl -u [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-683","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/comments?post=683"}],"version-history":[{"count":0,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/683\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/media?parent=683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/categories?post=683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/tags?post=683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}