{"id":386,"date":"2026-04-16T21:43:05","date_gmt":"2026-04-16T12:43:05","guid":{"rendered":"https:\/\/falcon21.space\/kazuya\/work\/?page_id=386"},"modified":"2026-04-16T21:43:51","modified_gmt":"2026-04-16T12:43:51","slug":"journalctl-%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89","status":"publish","type":"page","link":"https:\/\/falcon21.space\/kazuya\/work\/?page_id=386","title":{"rendered":"journalctl \u30b3\u30de\u30f3\u30c9"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>systemd\u3067\u8d77\u52d5\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30b0\u3092\u78ba\u8a8d\u3059\u308b<\/p>\n\n\n\n<p> journal\u306e\u5168\u3066\u306e\u5185\u5bb9\u3092\u53e4\u3044\u9806\u306b\u8868\u793a(\u5f15\u6570\u306a\u3057)<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl &#8211;system | head -n5<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u6700\u65b0\u306e\u30ed\u30b0\u304b\u3089\u8868\u793a(-r\u30aa\u30d7\u30b7\u30e7\u30f3)<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl -r<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u8d77\u52d5\u6642\u304b\u3089\u306e\u30ed\u30b0\u3092\u8868\u793a(-b\u30aa\u30d7\u30b7\u30e7\u30f3)<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl -b | head -n1<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u30e6\u30cb\u30c3\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u6307\u5b9a\u3057\u3066\u8868\u793a(-u\u30aa\u30d7\u30b7\u30e7\u30f3)<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl -u httpd<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u30ab\u30fc\u30cd\u30eb\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a(-k\u30aa\u30d7\u30b7\u30e7\u30f3)<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl -k<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u6700\u65b0\u306e\u30ed\u30b0\u304b\u3089n\u500b\u306e\u30ed\u30b0\u3092\u8868\u793a(-n\u30aa\u30d7\u30b7\u30e7\u30f3)<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl -n20<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u6761\u4ef6\u306b\u30de\u30c3\u30c1\u30f3\u30b0\u3057\u305f\u3082\u306e\u3092\u8868\u793a<br>\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3064\u3044\u3066\u306f man 7 systemd.journal-fields\u3067\u78ba\u8a8d<\/p>\n\n\n\n<h1 class=\"wp-block-heading has-medium-font-size\">journalctl &#8211;fields<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>systemd\u3067\u8d77\u52d5\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30b0\u3092\u78ba\u8a8d\u3059\u308b journal\u306e\u5168\u3066\u306e\u5185\u5bb9\u3092\u53e4\u3044\u9806\u306b\u8868\u793a(\u5f15\u6570\u306a\u3057) journalctl journalctl &#8211;system | head -n5 \u6700\u65b0\u306e\u30ed\u30b0\u304b\u3089\u8868\u793a(- [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":289,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-386","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=386"}],"version-history":[{"count":1,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/386\/revisions"}],"predecessor-version":[{"id":387,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/386\/revisions\/387"}],"up":[{"embeddable":true,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/289"}],"wp:attachment":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}