{"id":2045,"date":"2024-06-05T20:16:16","date_gmt":"2024-06-05T12:16:16","guid":{"rendered":"https:\/\/cn.raksmart.com\/blog\/host\/3790.html"},"modified":"2024-06-05T20:16:16","modified_gmt":"2024-06-05T12:16:16","slug":"linux-unix-%e8%be%93%e5%85%a5%e8%be%93%e5%87%ba%e9%87%8d%e5%ae%9a%e5%90%91%e4%ba%8c","status":"publish","type":"post","link":"https:\/\/cn.raksmart.com\/blog\/knowledge\/jszc\/2045.html","title":{"rendered":"Linux\/Unix \u8f93\u5165\u8f93\u51fa\u91cd\u5b9a\u5411(\u4e8c)"},"content":{"rendered":"<div class=\"entry-content e-content\" itemprop=\"description articleBody\">\n<p>\u524d\u4e00\u7ae0\u8ba8\u8bba\u4e86\u201c\u8f93\u51fa\u91cd\u5b9a\u5411\u3001\u8f93\u5165\u91cd\u5b9a\u5411\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26 (FD)\u201d\uff0c\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u6700\u540e\u4e00\u7ae0\u201c\u9519\u8bef\u91cd\u5b9a\u5411\u3001\u4e3a\u4ec0\u4e48\u9519\u8bef\u91cd\u5b9a\u5411?\u201d\u3002<a href=\"https:\/\/www.raksmart.com\/cps\/7821\" target=\"_blank\" rel=\"noopener\">raksmart<\/a><strong><a href=\"https:\/\/cn.raksmart.com\/\" target=\"_blank\" rel=\"noopener\">\u7f8e\u56fd\u670d\u52a1\u5668<\/a><\/strong>\u5206\u4eabLinux\/Unix \u8f93\u5165\u8f93\u51fa\u91cd\u5b9a\u5411(\u4e8c)<\/p>\n<p>\u9519\u8bef\u91cd\u5b9a\u5411<\/p>\n<p>\u6bcf\u5f53\u60a8\u5728\u7ec8\u7aef\u6267\u884c\u7a0b\u5e8f\/\u547d\u4ee4\u65f6\uff0c\u59cb\u7ec8\u6253\u5f00 3 \u4e2a\u6587\u4ef6\uff0c\u5373\u6807\u51c6\u8f93\u5165\u3001\u6807\u51c6\u8f93\u51fa\u3001\u6807\u51c6\u9519\u8bef\u3002<\/p>\n<p>\u6bcf\u5f53\u8fd0\u884c\u7a0b\u5e8f\u65f6\uff0c\u8fd9\u4e9b\u6587\u4ef6\u59cb\u7ec8\u5b58\u5728\u3002\u5982\u524d\u6240\u8ff0\uff0c\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e0e\u8fd9\u4e9b\u6587\u4ef6\u4e2d\u7684\u6bcf\u4e00\u4e2a\u76f8\u5173\u8054\u3002\u63a8\u8350\u9605\u8bfb\uff1a<a href=\"https:\/\/cn.raksmart.com\/blog\/knowledge\/jszc\/2030.html\" target=\"_blank\" rel=\"noopener\">\u300aLinux\/Unix \u8f93\u5165\u8f93\u51fa\u91cd\u5b9a\u5411(\u4e00)\u300b<\/a><\/p>\n<p>\u6587\u4ef6 \u6587\u4ef6\u63cf\u8ff0\u7b26<\/p>\n<p>\u6807\u51c6\u8f93\u5165 STDIN 0<\/p>\n<p>\u6807\u51c6\u8f93\u51fa STDOUT 1<\/p>\n<p>\u6807\u51c6\u9519\u8bef STDERR 2<\/p>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u9519\u8bef\u6d41\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u3002\u9519\u8bef\u91cd\u5b9a\u5411\u662f\u5c06\u9519\u8bef\u8def\u7531\u5230\u5c4f\u5e55\u4ee5\u5916\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u9519\u8bef\u91cd\u5b9a\u5411?<\/p>\n<p>\u9519\u8bef\u91cd\u5b9a\u5411\u662f Unix\/Linux \u975e\u5e38\u6d41\u884c\u7684\u7279\u6027\u4e4b\u4e00\u3002<\/p>\n<p>\u7ecf\u5e38\u4f7f\u7528 UNIX \u7684\u7528\u6237\u4f1a\u8ba4\u4e3a\u8bb8\u591a\u547d\u4ee4\u4f1a\u7ed9\u60a8\u5e26\u6765\u5927\u91cf\u9519\u8bef\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5728\u641c\u7d22\u6587\u4ef6\u65f6\uff0c\u901a\u5e38\u4f1a\u51fa\u73b0\u6743\u9650\u88ab\u62d2\u7edd\u9519\u8bef\u3002\u8fd9\u4e9b\u9519\u8bef\u901a\u5e38\u5bf9\u641c\u7d22\u7279\u5b9a\u6587\u4ef6\u7684\u4eba\u6ca1\u6709\u5e2e\u52a9\u3002<\/p>\n<p>\u5728\u6267\u884c shell \u811a\u672c\u65f6\uff0c\u60a8\u901a\u5e38\u4e0d\u5e0c\u671b\u9519\u8bef\u6d88\u606f\u5f04\u4e71\u6b63\u5e38\u7684\u7a0b\u5e8f\u8f93\u51fa\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6848\u662f\u5c06\u9519\u8bef\u6d88\u606f\u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u3002<\/p>\n<p>\u793a\u4f8b 1<\/p>\n<p>$ myprogram 2&gt;errorsfile<\/p>\n<p>\u4e0a\u9762\u6211\u4eec\u6b63\u5728\u6267\u884c\u4e00\u4e2a\u540d\u4e3a myprogram \u7684\u7a0b\u5e8f\u3002<\/p>\n<p>\u6807\u51c6\u9519\u8bef\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u662f 2\u3002<\/p>\n<p>\u4f7f\u7528\u201c2&gt;\u201d\u6211\u4eec\u5c06\u9519\u8bef\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u540d\u4e3a\u201cerrorfile\u201d\u7684\u6587\u4ef6<\/p>\n<p>\u56e0\u6b64\uff0c\u7a0b\u5e8f\u8f93\u51fa\u4e0d\u4f1a\u56e0\u9519\u8bef\u800c\u6742\u4e71\u65e0\u7ae0\u3002<\/p>\n<p>\u793a\u4f8b 2<\/p>\n<p>\u8fd9\u662f\u53e6\u4e00\u4e2a\u4f7f\u7528 find \u8bed\u53e5\u7684\u793a\u4f8b \u2013<\/p>\n<p>find . -name \u2018my*\u2019 2&gt;error.log<\/p>\n<p>\u4f7f\u7528\u201cfind\u201d\u547d\u4ee4\uff0c\u6211\u4eec\u6b63\u5728\u641c\u7d22\u201c.\u201d \u201cname\u201d\u4ee5\u201cmy\u201d\u5f00\u5934\u7684\u6587\u4ef6\u7684\u5f53\u524d\u76ee\u5f55<\/p>\n<p>\u793a\u4f8b 3\uff1a\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u66f4\u590d\u6742\u7684\u793a\u4f8b\uff0c<\/p>\n<p>\u670d\u52a1\u5668\u7ba1\u7406\u5458\u7ecf\u5e38\u5217\u51fa\u76ee\u5f55\u5e76\u5c06\u9519\u8bef\u548c\u6807\u51c6\u8f93\u51fa\u5b58\u50a8\u5230\u6587\u4ef6\u4e2d\uff0c\u4ee5\u4fbf\u4ee5\u540e\u5904\u7406\u3002\u8fd9\u662f\u547d\u4ee4\u3002<\/p>\n<p>ls Documents ABC&gt; dirlist 2&gt;&amp;1<\/p>\n<p>\u8fd9\u91cc\uff0c<\/p>\n<p>\u5b83\u5c06\u4e00\u4e2a\u6587\u4ef6\u7684\u8f93\u51fa\u5199\u5165\u53e6\u4e00\u4e2a\u6587\u4ef6\u7684\u8f93\u5165\u30022&gt;&amp;1 \u8868\u793aSTDERR\u91cd\u5b9a\u5411\u5230STDOUT\u7684\u76ee\u6807(\u5373\u6587\u4ef6\u76ee\u5f55\u5217\u8868)<\/p>\n<p>\u6211\u4eec\u5c06\u9519\u8bef\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u800c\u6807\u51c6\u8f93\u51fa\u53c8\u88ab\u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u76ee\u5f55\u5217\u8868\u3002\u56e0\u6b64\uff0c\u4e24\u4e2a\u8f93\u51fa\u90fd\u5199\u5165\u6587\u4ef6 dirlist<\/p>\n<p>\u6982\u62ec<\/p>\n<p>Linux \u4e2d\u7684\u6bcf\u4e2a\u6587\u4ef6\u90fd\u6709\u4e00\u4e2a\u4e0e\u4e4b\u5173\u8054\u7684\u5bf9\u5e94\u6587\u4ef6\u63cf\u8ff0\u7b26<\/p>\n<p>\u952e\u76d8\u662f\u6807\u51c6\u8f93\u5165\u8bbe\u5907\uff0c\u800c\u5c4f\u5e55\u662f\u6807\u51c6\u8f93\u51fa\u8bbe\u5907<\/p>\n<p>\u201c&gt;\u201d\u662f\u8f93\u51fa\u91cd\u5b9a\u5411\u64cd\u4f5c\u7b26\u3002\u201c&gt;&gt;\u201d \u5c06\u8f93\u51fa\u9644\u52a0\u5230\u73b0\u6709\u6587\u4ef6<\/p>\n<p>\u201c&lt;\u201d\u662f\u8f93\u5165\u91cd\u5b9a\u5411\u64cd\u4f5c\u7b26<\/p>\n<p>\u201c&gt;&amp;\u201d\u5c06\u4e00\u4e2a\u6587\u4ef6\u7684\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u53e6\u4e00\u4e2a\u6587\u4ef6\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u76f8\u5e94\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26 2 \u91cd\u5b9a\u5411\u9519\u8bef\u3002\u63a8\u8350\u76f8\u5173\u9605\u8bfb\uff1a<a href=\"https:\/\/cn.raksmart.com\/blog\/server\/1922.html\">\u300aLinux \/ Unix \u4e2d\u7684\u6587\u4ef6\u6743\u9650\u5982\u4f55\u8bfb\u53d6\u3001\u5199\u5165\u548c\u66f4\u6539?(\u4e09)\u300b<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u4e00\u7ae0\u8ba8\u8bba\u4e86\u201c\u8f93\u51fa\u91cd\u5b9a\u5411\u3001\u8f93\u5165\u91cd\u5b9a\u5411\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26 (FD)\u201d\uff0c\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u6700\u540e\u4e00\u7ae0\u201c\u9519\u8bef\u91cd\u5b9a\u2026 <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[738,739,784],"class_list":["post-2045","post","type-post","status-publish","format-standard","hentry","category-jszc","tag-linux","tag-unix","tag-784"],"_links":{"self":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts\/2045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/comments?post=2045"}],"version-history":[{"count":0,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts\/2045\/revisions"}],"wp:attachment":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/media?parent=2045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/categories?post=2045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/tags?post=2045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}