{"id":2369,"date":"2017-06-24T21:57:37","date_gmt":"2017-06-24T13:57:37","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2369"},"modified":"2024-11-15T14:29:15","modified_gmt":"2024-11-15T06:29:15","slug":"centos%e6%96%87%e6%9c%ac%e5%86%85%e5%ae%b9%e6%9f%a5%e7%9c%8blesscattacmorelesshead","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/centos%e6%96%87%e6%9c%ac%e5%86%85%e5%ae%b9%e6%9f%a5%e7%9c%8blesscattacmorelesshead\/","title":{"rendered":"CentOS\u6587\u672c\u5185\u5bb9\u67e5\u770b(less\/cat\/tac\/more\/less\/head"},"content":{"rendered":"<pre><code>vi\u547d\u4ee4\u662f\u7f16\u8f91\u5668\uff0c\u4f46\u662f\u6709\u4e2a\u53ef\u6015\u7684\u5730\u65b9\u3002\u5982\u679c\u6587\u4ef6\u5f88\u5927\uff0c\u597d\u51e0\u5341G\uff0c\u90a3\u4e48vi\u4e00\u4e0b\uff0c\u5219\u4f1a\u628a\u6240\u6709\u6587\u4ef6\u90fd\u4f1a\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002\u5bfc\u81f4\u670d\u52a1\u5668\u762b\u75ea\u3002 \r\n\u56e0\u6b64\u67e5\u770b\u6587\u4ef6\uff0c\u6700\u597d\u7528less,cat,tail\u547d\u4ee4\u3002\r\n<\/code><\/pre>\n<h2 id=\"less\">less<\/h2>\n<p>less(less) \u547d\u4ee4\u53ef\u4ee5\u5bf9\u6587\u4ef6\u6216\u5176\u5b83\u8f93\u51fa\u8fdb\u884c\u5206\u9875\u663e\u793a\uff0c\u4e0emoe\u547d\u4ee4\u76f8\u4f3c\uff0c\u4f46\u662f\u6bd4more\u547d\u4ee4\u8981\u5f3a\u5927\u8bb8\u591a\u3002\u5e94\u8be5\u8bf4\u662flinux\u6b63\u7edf\u67e5\u770b\u6587\u4ef6\u5185\u5bb9\u7684\u5de5\u5177\u3002<\/p>\n<h3 id=\"\u7528\u6cd5\">\u7528\u6cd5<\/h3>\n<p>less [\u9009\u9879]\u2026 [\u6587\u4ef6]\u2026<\/p>\n<h3 id=\"\u9009\u9879\">\u9009\u9879<\/h3>\n<p>-? \u2026\u2026.. \u2013help \u663e\u793a\u5e2e\u52a9<br \/>\n-n \u2026\u2026.. \u2013line-numbers<br \/>\nDon\u2019t use line numbers.<br \/>\n-N \u2026\u2026.. \u2013LINE-NUMBERS<br \/>\nUse line numbers. \u663e\u793a\u6bcf\u884c\u7684\u884c\u53f7<br \/>\n-g \u2026\u2026.. \u2013hilite-search<br \/>\nHighlight only last match for searches.\u4e0d\u52a0\u4eae\u663e\u793a\u641c\u7d22\u5230\u7684\u6240\u6709\u5173\u952e\u8bcd\uff0c\u4ec5\u663e\u793a\u5f53\u524d\u663e\u793a\u7684\u5173\u952e\u5b57\uff0c\u4ee5\u63d0\u9ad8\u663e\u793a\u901f\u5ea6\uff1b<br \/>\n-G \u2026\u2026.. \u2013HILITE-SEARCH<br \/>\nDon\u2019t highlight any matches for searches.<br \/>\n-i \u2026\u2026.. \u2013ignore-case<br \/>\nIgnore case in searches that do not contain uppercase. \u5ffd\u7565\u641c\u7d22\u65f6\u7684\u5927\u5c0f\u5199<br \/>\n-I \u2026\u2026.. \u2013IGNORE-CASE<br \/>\nIgnore case in all searches.<\/p>\n<h3 id=\"\u5e38\u7528\u547d\u4ee4\">\u5e38\u7528\u547d\u4ee4<\/h3>\n<p>\u56de\u8f66\u952e \u5411\u4e0b\u79fb\u52a8\u4e00\u884c\uff1b<br \/>\ny \u5411\u4e0a\u79fb\u52a8\u4e00\u884c\uff1b<br \/>\n\u7a7a\u683c\u952e \u5411\u4e0b\u6eda\u52a8\u4e00\u5c4f\uff1b<br \/>\nb \u5411\u4e0a\u6eda\u52a8\u4e00\u5c4f\uff1b<br \/>\nd \u5411\u4e0b\u6eda\u52a8\u534a\u5c4f\uff1b<br \/>\nu \u5411\u4e0a\u6d0b\u52a8\u534a\u5c4f\uff1b<br \/>\ng \u8df3\u5230\u7b2c\u4e00\u884c\uff1b<br \/>\nG \u8df3\u5230\u6700\u540e\u4e00\u884c\uff1b<br \/>\n\/pattern \u641c\u7d22pattern n\u548cN\u63a7\u5236\u5411\u4e0a\u548c\u5411\u4e0b\u67e5\u627e<br \/>\nq \u9000\u51faless<\/p>\n<h3 id=\"\u67e5\u770b\u547d\u4ee4\u5386\u53f2\u4f7f\u7528\u8bb0\u5f55\u5e76\u901a\u8fc7less\u5206\u9875\u663e\u793a\">\u67e5\u770b\u547d\u4ee4\u5386\u53f2\u4f7f\u7528\u8bb0\u5f55\u5e76\u901a\u8fc7less\u5206\u9875\u663e\u793a<\/h3>\n<p>history | less<\/p>\n<h3 id=\"less-\u7248-tail-f-\u52a8\u6001\u67e5\u770b\u65e5\u5fd7\u6587\u4ef6\">less \u7248 tail \u2013f \u52a8\u6001\u67e5\u770b\u65e5\u5fd7\u6587\u4ef6<\/h3>\n<p>\u4f7f\u7528 less file-name \u6253\u5f00\u65e5\u5fd7\u6587\u4ef6\uff0c\u6309 F \u53ef\u4ee5\u5b9e\u73b0\u7c7b\u4f3c tail -f \u7684\u6548\u679c\u3002\u6309ctrl+c\u9000\u51fa\u3002<\/p>\n<h2 id=\"cat\">cat<\/h2>\n<p>cat (concatenate\uff0c\u8fde\u63a5)\u547d\u4ee4\u5c06[\u6587\u4ef6]\u6216\u6807\u51c6\u8f93\u5165\u7ec4\u5408\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u6587\u4ef6\uff0c\u6216\u8005\u6587\u4ef6\u4e3a\u201d-\u201c\uff0c\u5219\u4ece\u6807\u51c6\u8f93\u5165\u8bfb\u53d6\u3002<\/p>\n<h2 id=\"tac\">tac<\/h2>\n<p>cat \u53cd\u5411\u663e\u793a<\/p>\n<h2 id=\"more\">more<\/h2>\n<p>more (more) \u8be5\u547d\u4ee4\u4e00\u6b21\u663e\u793a\u4e00\u5c4f\u6587\u672c\uff0c\u6ee1\u5c4f\u540e\u505c\u4e0b\u6765\uff0c\u5e76\u4e14\u5728\u5c4f\u5e55\u7684\u5e95\u90e8\u51fa\u73b0\u4e00\u4e2a\u63d0\u793a\u4fe1\u606f\uff0c\u7ed9\u51fa\u81f3\u4eca\u5df1\u663e\u793a\u7684\u8be5\u6587\u4ef6\u7684\u767e\u5206\u6bd4,\u65b9\u4fbf\u9010\u9875\u9605\u8bfb(file perusal filter for crt viewing) \u3002more\u540d\u5355\u4e2d\u5185\u7f6e\u4e86\u82e5\u5e72\u5feb\u6377\u952e\uff0c\u6309\u7a7a\u767d\u952e\uff08space\uff09\u5c31\u5f80\u4e0b\u4e00\u9875\u663e\u793a\uff0c\u6309 b \u952e\u5c31\u4f1a\u5f80\u56de\uff08back\uff09\u4e00\u9875\u663e\u793a\uff0c\u800c\u4e14\u8fd8\u6709\u641c\u5bfb\u5b57\u4e32\u7684\u529f\u80fd\uff08\u4e0e vi \u76f8\u4f3c\uff09\uff0c\u4f7f\u7528\u4e2d\u6309h\u53ef\u4ee5\u67e5\u770b\u8bf4\u660e\u6587\u4ef6 \u3002<\/p>\n<h2 id=\"head\">head<\/h2>\n<p>head (head) \u7528\u6765\u663e\u793a\u6863\u6848\u7684\u5f00\u5934\u81f3\u6807\u51c6\u8f93\u51fa\u4e2d\u3002\u5982\u679c\u6307\u5b9a\u4e86\u591a\u4e8e\u4e00\u4e2a\u6587\u4ef6\uff0c\u5728\u6bcf\u4e00\u6bb5\u8f93\u51fa\u524d\u4f1a\u7ed9\u51fa\u6587\u4ef6\u540d\u4f5c\u4e3a\u6587\u4ef6\u5934\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u6587\u4ef6\uff0c\u6216\u8005\u6587\u4ef6\u4e3a\u201d-\u201c\uff0c\u5219\u4ece\u6807\u51c6\u8f93\u5165\u8bfb\u53d6\u6570\u636e\u3002<\/p>\n<p>\u663e\u793a\u6587\u4ef6\u7684\u524dn\u884c<br \/>\nhead -n 5 log.txt<\/p>\n<p>\u8f93\u51fa\u6587\u4ef6\u9664\u4e86\u6700\u540en\u884c\u7684\u5168\u90e8\u5185\u5bb9<br \/>\nhead -n -5 log.txt<\/p>\n<h2 id=\"tail\">tail<\/h2>\n<p>tail (tail) \u7528\u6765\u663e\u793a\u6863\u6848\u7684\u7ed3\u5c3e(\u9ed8\u8ba4\u4e3a10\u884c)\u81f3\u6807\u51c6\u8f93\u51fa\u4e2d\u3002\u82e5\u6307\u5b9a\u4e86\u591a\u4e8e\u4e00\u4e2a\u6587\u4ef6\uff0c\u7a0b\u5e8f\u4f1a\u5728\u6bcf\u6bb5\u8f93\u51fa\u7684\u5f00\u59cb\u6dfb\u52a0\u76f8\u5e94\u6587\u4ef6\u540d\u4f5c\u4e3a\u5934\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u6587\u4ef6\u6216\u6587\u4ef6\u4e3a\u201d-\u201d \uff0c\u5219\u4ece\u6807\u51c6\u8f93\u5165\u8bfb\u53d6\u6570\u636e\u3002<\/p>\n<p>tail\u4e3b\u8981\u662f\u6d41\u5f0f\u67e5\u770b\u6587\u4ef6\uff0c\u6216\u8005\u662f\u4ece\u672b\u5c3e\u67e5\u770b\u6587\u4ef6\u3002<br \/>\ntail -50f \u6587\u4ef6\u540d<br \/>\n\u6216\u8005tail -n 50 -f \u6587\u4ef6\u540d<\/p>\n<p>\u663e\u793a\u6587\u4ef6\u7684\u540en\u884c<br \/>\ntail -n 5 log.txt<\/p>\n<p>\u4ece\u7b2c5\u884c\u5f00\u59cb\u8f93\u51fa\u6587\u4ef6<br \/>\ntail -n +5 log.txt<\/p>\n<p>\u52a8\u6001\u663e\u793a\u6587\u4ef6\u5185\u5bb9<br \/>\ntail -f log.txt<\/p>\n<h2 id=\"reference\"><\/h2>\n","protected":false},"excerpt":{"rendered":"<p>vi\u547d\u4ee4\u662f\u7f16\u8f91\u5668\uff0c\u4f46\u662f\u6709\u4e2a\u53ef\u6015\u7684\u5730\u65b9\u3002\u5982\u679c\u6587\u4ef6\u5f88\u5927\uff0c\u597d\u51e0\u5341G\uff0c\u90a3\u4e48vi\u4e00\u4e0b\uff0c\u5219\u4f1a\u628a\u6240\u6709\u6587\u4ef6\u90fd\u4f1a\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u3002\u5bfc &#8230; <a title=\"CentOS\u6587\u672c\u5185\u5bb9\u67e5\u770b(less\/cat\/tac\/more\/less\/head\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/centos%e6%96%87%e6%9c%ac%e5%86%85%e5%ae%b9%e6%9f%a5%e7%9c%8blesscattacmorelesshead\/\" aria-label=\"\u9605\u8bfb CentOS\u6587\u672c\u5185\u5bb9\u67e5\u770b(less\/cat\/tac\/more\/less\/head\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49,5],"tags":[82,1514],"class_list":["post-2369","post","type-post","status-publish","format-standard","hentry","category-linux","category-jishu","tag-centos"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2369"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2369\/revisions"}],"predecessor-version":[{"id":2370,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2369\/revisions\/2370"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}