{"id":174,"date":"2021-12-04T20:27:22","date_gmt":"2021-12-04T12:27:22","guid":{"rendered":"https:\/\/www.yuyiares.com\/?p=174"},"modified":"2022-09-30T13:11:43","modified_gmt":"2022-09-30T05:11:43","slug":"bash-%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"https:\/\/www.yuyiares.com\/?p=174","title":{"rendered":"bash &#8211; \u8f38\u5165\u8207\u8f38\u5165"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"174\" class=\"elementor elementor-174\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d4b556a elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no\" data-id=\"d4b556a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-285b02a\" data-id=\"285b02a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-554c1e0 elementor-widget elementor-widget-heading\" data-id=\"554c1e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">\u5148\u4ecb\u7d39\u4e00\u4e0bbash\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dca6033 elementor-widget elementor-widget-text-editor\" data-id=\"dca6033\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>Bash<\/b>\uff0c<a title=\"Unix shell\" href=\"https:\/\/zh.wikipedia.org\/wiki\/Unix_shell\">Unix shell<\/a>\u7684\u4e00\u7a2e\u3002<\/p><p>\u5b83\u662f\u547d\u7406\u8655\u7406\u5668\u7684\u4e00\u7a2e\uff0c\u901a\u5e38\u57f7\u884c\u65bc\u6587\u5b57\u7a97\u53e3\u4e2d\uff0c\u4e26\u80fd\u57f7\u884c\u4f7f\u7528\u8005\u76f4\u63a5\u8f38\u5165\u7684\u547d\u4ee4\u3002Bash\u9084\u80fd\u5f9e\u6a94\u6848\u4e2d\u8b80\u53d6\u547d\u4ee4\uff0c\u9019\u6a23\u7684\u6a94\u6848\u7a31\u70ba\u6307\u4ee4\u78bc\u3002<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e392cb elementor-widget elementor-widget-text-editor\" data-id=\"0e392cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u76ee\u524d\u5728\u6240\u6709\u7684 Linux \u7248\u672c\u90fd\u53ef\u770b\u5230\u5b83\u7684\u5f71\u5b50\uff0c\u5728 Windows \u4e5f\u540c\u6a23\u5982\u6b64\uff1b\u7531\u65bc\u5b83\u7684\u6280\u8853\u53ca\u6307\u4ee4\u78bc\u53ef\u4ee5\u8de8\u5e73\u53f0\u904b\u4f5c\uff0c\u4f7f Bash \u6210\u70ba\u4e00\u500b\u5f88\u65b9\u4fbf\u7684\u6280\u8853\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17779bc elementor-widget elementor-widget-text-editor\" data-id=\"17779bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u5728\u4e0a\u8ff0\u7684\u524d\u63d0\u4e0b\uff0c\u5b83\u66ff\u653b\u64ca\u4eba\u54e1\u548c\u6ef2\u900f\u6e2c\u8a66\u4eba\u54e1\u5e36\u4f86\u7368\u7279\u7684\u512a\u52e2\uff0c\u56e0\u70ba\u5b83\u4e0d\u9700\u8981\u984d\u5916\u7684\u5b89\u88dd\u5957\u4ef6\u5c31\u53ef\u4ee5\u5728\u76ee\u6a19\u7cfb\u7d71\u57f7\u884c\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfbe716 elementor-widget elementor-widget-heading\" data-id=\"bfbe716\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">\u8f38\u5165\/\u8f38\u51fa<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c736d4f elementor-widget elementor-widget-text-editor\" data-id=\"c736d4f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u5728\u4e00\u500b\u57f7\u884c\u4e2d\u7684\u7a0b\u5f0f\uff0c\u53eb\u505a<strong>\u7a0b\u5e8f<\/strong>\u3002<\/p><p>\u5728\u4f5c\u696d\u7cfb\u7d71\u7684\u7a0b\u5e8f\uff0c\u90fd\u6703\u6709\u4e09\u7a2e\u6a94\u6848\u63cf\u6558\u7b26(file descriptors)\u3002<\/p><ul><li>Standard input (stdin\/<span class=\"monospaced\">STDIN_FILENO<\/span>)<\/li><li>Standard output (stdout\/<span class=\"monospaced\">STDOUT_FILENO<\/span>)<\/li><li>Standard error (stderr<span class=\"monospaced\">\/STDERR_FILEND<\/span>)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0748586 elementor-widget elementor-widget-heading\" data-id=\"0748586\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Standard input<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e538f6 elementor-widget elementor-widget-text-editor\" data-id=\"0e538f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u7a0b\u5f0f\u7684\u9810\u5b9a\u8f38\u5165\u4f86\u6e90\uff0c\u9810\u5b9a\u70ba\u9375\u76e4\u8f38\u5165\u7684\u6587\u5b57\u3002<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d49b26f elementor-widget elementor-widget-heading\" data-id=\"d49b26f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Standard output<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e49974 elementor-widget elementor-widget-text-editor\" data-id=\"5e49974\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u9810\u8a2d\u70ba\u5728\u57f7\u884c\u7684 shell \u8996\u7a97\u5167\u8f38\u51fa\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-743f9a8 elementor-widget elementor-widget-heading\" data-id=\"743f9a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Standard error<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5dd545 elementor-widget elementor-widget-text-editor\" data-id=\"e5dd545\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u4f46\u6bd4\u8f03\u4e0d\u540c\u7684\u662f Standard error \u53ea\u6703\u6709\u932f\u8aa4\u8a0a\u606f\u3002<\/p><p>\u9700\u8981\u6839\u64da\u64b0\u5beb\u8005\u6c7a\u5b9a\u8c46\u82b1(\u932f\u8aa4\u8a0a\u606f)\u662f\u8981\u5674\u5728 stderr \u6216\u662f stdout \u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-881a0e8 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"881a0e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e89d4b elementor-widget elementor-widget-heading\" data-id=\"2e89d4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">\u91cd\u5c0e\u5411\u8f38\u5165\u548c\u8f38\u5165<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8787c6d elementor-widget elementor-widget-text-editor\" data-id=\"8787c6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u4fee\u6539\u7a0b\u5f0f\u7684\u8f38\u51fa\u548c\u8f38\u5165<\/p><p>\u5982\u4e0b\u6307\u4ee4\u6240\u793a\uff0cGETDATA \u6703\u5f9e input \u8b80\u53d6\u8cc7\u6599\uff0c\u518d\u5c07\u7d50\u679c\u5beb\u5165 output<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc17fae elementor-widget elementor-widget-shortcode\" data-id=\"cc17fae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA < input  > output <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e243d1 elementor-widget elementor-widget-spacer\" data-id=\"3e243d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb1db37 elementor-widget elementor-widget-text-editor\" data-id=\"eb1db37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u5982\u679c\u662f\u8981\u91cd\u65b0\u5c0e\u5411\u932f\u8aa4\u8a0a\u606f\uff0c\u53ef\u80fd\u900f\u904e\u63cf\u6558\u7b26\u6578\u5b57\u4f86\u8abf\u6574\uff0cstdin \u70ba 0 \uff0c stdout \u70ba 1\u00a0 \uff0c stderr \u70ba 2 \u3002<\/p><p>\u4e0b\u65b9\u6307\u4ee4\u70ba\u5c07\u932f\u8aa4\u8a0a\u606f\u5beb\u5165err.log<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d398581 elementor-widget elementor-widget-shortcode\" data-id=\"d398581\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  2> err.log <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c128fa6 elementor-widget elementor-widget-spacer\" data-id=\"c128fa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f460ab9 elementor-widget elementor-widget-text-editor\" data-id=\"f460ab9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u4e5f\u53ef\u4ee5\u5c07\u6b63\u5e38\u8f38\u51fa\u548c\u932f\u8aa4\u8a0a\u606f\u5beb\u5728\u4e00\u8d77\uff0c\u4e0d\u904e\u8981\u900f\u904e\u932f\u8aa4\u8a0a\u606f\u90a3\u908a\u8981\u4f7f\u7528 &amp;1 \uff0c\u5982\u4e0b\u6240\u793a\uff0c\u6703\u5c07\u8f38\u5165\u548c\u932f\u8aa4\u8a0a\u606f\u90fd\u5beb\u5165 output\u9019\u500b\u6a94\u6848\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da87b96 elementor-widget elementor-widget-shortcode\" data-id=\"da87b96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  > output   2> &1<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ecfd1d5 elementor-widget elementor-widget-text-editor\" data-id=\"ecfd1d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u4e5f\u53ef\u4ee5\u9019\u6a23\u5beb<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-007da4d elementor-widget elementor-widget-shortcode\" data-id=\"007da4d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  &> output<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f52e73 elementor-widget elementor-widget-spacer\" data-id=\"9f52e73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42b5c4d elementor-widget elementor-widget-text-editor\" data-id=\"42b5c4d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u5982\u679c\u4e0d\u60f3\u8981\u8f38\u51fa\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5c0e\u5411 \/dev\/null \u9019\u500b\u7279\u6b8a\u6a94\u6848\u3002<\/p><p>\/dev\/null \u6703\u4e1f\u68c4\u4e00\u5207\u5beb\u5165\u5176\u4e2d\u7684\u8cc7\u6599\uff08\u4f46\u5831\u544a\u5beb\u5165\u64cd\u4f5c\u6210\u529f\uff09\uff0c\u8b80\u53d6\u5b83\u5247\u6703\u7acb\u5373\u5f97\u5230\u4e00\u500bEOF\u3002\u02cb<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84dcbd4 elementor-widget elementor-widget-shortcode\" data-id=\"84dcbd4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  > \/dev\/null<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a38e4c5 elementor-widget elementor-widget-spacer\" data-id=\"a38e4c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b0ad24 elementor-widget elementor-widget-text-editor\" data-id=\"0b0ad24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u5982\u679c\u60f3\u8981\u540c\u6642\u6aa2\u8996\u8f38\u5165\uff0c\u53c8\u60f3\u8981\u5c07\u5b83\u8f38\u51fa\u5230\u6a94\u6848\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 tee \u6307\u4ee4\u3002 \u4e0b\u5217\u6307\u4ee4\u5c31\u662f\u540c\u6642\u5728\u87a2\u5e55\u986f\u793a\u53c8\u5c07\u8f38\u51fa\u5b58\u5728 output\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6a7408 elementor-widget elementor-widget-shortcode\" data-id=\"c6a7408\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  |  tee  output<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19104ac elementor-widget elementor-widget-text-editor\" data-id=\"19104ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>tee -a \u7684\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5167\u5bb9\u9644\u52a0\u5728\u6307\u5b9a\u6a94\u6848\u5f8c\u9762\uff0c\u800c\u4e0d\u6703\u76f4\u63a5\u8986\u84cb\u6389\u3002<\/li><li>| \u5b57\u5143\u662f\u6240\u8b02\u7684\u7ba1\u7dda ( pipe )\u3002\u80fd\u5920\u5c07\u67d0\u4e00\u547d\u4ee4\u6216\u6307\u4ee4\u7a3f\u7684\u8f38\u51fa\u62ff\u4f86\u7576\u6210\u5225\u7684\u7a0b\u5e8f\u7684\u8f38\u5165\u3002<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c2c133 elementor-widget elementor-widget-spacer\" data-id=\"5c2c133\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a25cb25 elementor-widget elementor-widget-text-editor\" data-id=\"a25cb25\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u4e0d\u904e\u5982\u679c\u53ea\u4f7f\u7528 &gt; \u7684\u8a71\uff0c\u6a94\u6848\u4e0d\u662f\u65b0\u5efa\u5c31\u662f\u8986\u84cb\uff0c\u5982\u679c\u60f3\u8981\u4fdd\u5b58\u539f\u6709\u7684\u8cc7\u6599\uff0c\u9808\u6539\u7528 &gt;&gt; \u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9637aa elementor-widget elementor-widget-shortcode\" data-id=\"e9637aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  >> output<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e1e656 elementor-widget elementor-widget-spacer\" data-id=\"4e1e656\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-880d083 elementor-widget elementor-widget-heading\" data-id=\"880d083\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">\u80cc\u666f\u57f7\u884c<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f89656 elementor-widget elementor-widget-text-editor\" data-id=\"9f89656\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u82e5\u8981\u5728\u80cc\u666f\u57f7\u884c\uff0c\u53ef\u4ee5\u5728\u6307\u4ee4\u6700\u5f8c\u9762\u52a0\u4e0a &amp; <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bf29eb elementor-widget elementor-widget-shortcode\" data-id=\"4bf29eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">$ GETDATA  &> output &<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92a4957 elementor-widget elementor-widget-text-editor\" data-id=\"92a4957\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>\u5982\u679c\u8981\u78ba\u8a8d\u76ee\u524d\u5728\u80cc\u666f\u57f7\u884c\u7684\u4f5c\u696d\uff0c\u53ef\u4ee5\u4f7f\u7528 jobs \u6307\u4ee4\u3002<\/li><li>\u82e5\u8981\u5c07\u7a0b\u5e8f\u62c9\u56de\u4f86\uff0c\u53ef\u4ee5\u9069\u7528 fg \u6307\u4ee4\u3002<\/li><li>\u82e5\u7a0b\u5f0f\u5728\u524d\u7aef\u57f7\u884c\uff0c \u53ef\u4ee5\u900f\u904e Ctrl-Z \u5c07\u7a0b\u5f0f\u66ab\u505c\uff0c\u7136\u5f8c\u900f\u904e bg \u5c07\u5176\u79fb\u5230\u80cc\u666f\u57f7\u884c\u3002<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7f5b84 elementor-widget elementor-widget-heading\" data-id=\"e7f5b84\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u7c21\u55ae\u6574\u7406<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03b6471 elementor-widget elementor-widget-text-editor\" data-id=\"03b6471\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Ctrl-z\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\uff0c\u4f46\u4efb\u52d9\u4e26\u6c92\u6709\u7d50\u675f\uff0c\u5728\u9032\u7a0b\u4e2d\u986f\u793a\u639b\u8d77\u72c0\u614b\u3002(<em class=\"qkunPe\">\u639b\u8d77<\/em>\u662f\u6307\u5728\u4f5c\u696d\u7cfb\u7d71\u884c\u7a0b\u7ba1\u7406\u5c07\u524d\u53f0\u7684\u884c\u7a0b\u66ab\u505c(suspend)\u4e26\u8f49\u5165\u5f8c\u53f0\u7684\u52d5\u4f5c)<\/li><li>Ctrl-c\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\u7a0b\u5e8f\u7684\u57f7\u884c\u3002<\/li><li>Ctrl-d\u00a0 \uff0c\u8868\u793a EOF \u3002<\/li><li>jobs \uff0c\u67e5\u770b\u80cc\u666f\u57f7\u884c\u72c0\u614b\u3002<\/li><li>fg \uff0c \u5c07\u80cc\u666f\u57f7\u884c\u7684\u7a0b\u5e8f\u62c9\u5230\u524d\u7aef\uff0c\u9700\u8981\u5728\u6307\u4ee4\u5f8c\u9762\u52a0\u4e0a %jobnumber ( \u57f7\u884c\u7684\u5e8f\u865f )<\/li><li>bg \uff0c\u00a0\u00a0 \u5c07\u5f8c\u7aef\u66ab\u505c\u7684\u4efb\u52d9\uff0c\u7e7c\u7e8c\u57f7\u884c \uff1b\u82e5\u5f8c\u7aef\u6709\u591a\u500b\u4efb\u52d9\uff0c\u53ef\u4ee5\u900f\u904e%jobnumber \u8abf\u7528\u3002<\/li><li>Ctrl-s Suspend output<\/li><li>Ctrl-q Resume output<\/li><li>Ctrl-o Discard output<\/li><li>Ctrl-l Clear screen<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u5148\u4ecb\u7d39\u4e00\u4e0bbash Bash\uff0cUnix shell\u7684\u4e00\u7a2e\u3002 \u5b83\u662f\u547d\u7406\u8655\u7406\u5668\u7684\u4e00\u7a2e\uff0c\u901a\u5e38\u57f7\u884c\u65bc\u6587\u5b57\u7a97\u53e3\u4e2d\uff0c\u4e26\u80fd\u57f7\u884c\u4f7f\u7528\u8005\u76f4\u63a5\u8f38\u5165\u7684\u547d\u4ee4\u3002Bash\u9084\u80fd\u5f9e\u6a94\u6848\u4e2d\u8b80\u53d6\u547d\u4ee4\uff0c\u9019\u6a23\u7684\u6a94\u6848\u7a31\u70ba\u6307\u4ee4\u78bc\u3002 \u76ee\u524d\u5728\u6240\u6709\u7684 Linux \u7248\u672c\u90fd\u53ef\u770b\u5230\u5b83\u7684\u5f71\u5b50\uff0c\u5728 Windows \u4e5f\u540c\u6a23\u5982\u6b64\uff1b\u7531\u65bc\u5b83\u7684\u6280\u8853\u53ca\u6307\u4ee4\u78bc\u53ef\u4ee5\u8de8\u5e73\u53f0\u904b\u4f5c\uff0c\u4f7f Bash \u6210\u70ba\u4e00\u500b\u5f88\u65b9\u4fbf\u7684\u6280\u8853\u3002 \u5728\u4e0a\u8ff0\u7684\u524d\u63d0\u4e0b\uff0c\u5b83\u66ff\u653b\u64ca\u4eba\u54e1\u548c\u6ef2\u900f\u6e2c\u8a66\u4eba\u54e1\u5e36\u4f86\u7368\u7279\u7684\u512a\u52e2\uff0c\u56e0\u70ba\u5b83\u4e0d\u9700\u8981\u984d\u5916\u7684\u5b89\u88dd\u5957\u4ef6\u5c31\u53ef\u4ee5\u5728\u76ee\u6a19\u7cfb\u7d71\u57f7\u884c\u3002 \u8f38\u5165\/\u8f38\u51fa \u5728\u4e00\u500b\u57f7\u884c\u4e2d\u7684\u7a0b\u5f0f\uff0c\u53eb\u505a\u7a0b\u5e8f\u3002 \u5728\u4f5c\u696d\u7cfb\u7d71\u7684\u7a0b\u5e8f\uff0c\u90fd\u6703\u6709\u4e09\u7a2e\u6a94\u6848\u63cf\u6558\u7b26(file descriptors)\u3002 Standard input (stdin\/STDIN_FILENO) Standard output (stdout\/STDOUT_FILENO) Standard error (stderr\/STDERR_FILEND) Standard input \u7a0b\u5f0f\u7684\u9810\u5b9a\u8f38\u5165\u4f86\u6e90\uff0c\u9810\u5b9a\u70ba\u9375\u76e4\u8f38\u5165\u7684\u6587\u5b57\u3002 Standard output \u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u9810\u8a2d\u70ba\u5728\u57f7\u884c\u7684 shell \u8996\u7a97\u5167\u8f38\u51fa\u3002 Standard error \u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u4f46\u6bd4\u8f03\u4e0d\u540c\u7684\u662f Standard error \u53ea\u6703\u6709\u932f\u8aa4\u8a0a\u606f\u3002 \u9700\u8981\u6839\u64da\u64b0\u5beb\u8005\u6c7a\u5b9a\u8c46\u82b1(\u932f\u8aa4\u8a0a\u606f)\u662f\u8981\u5674\u5728 stderr \u6216\u662f stdout \u3002 \u91cd\u5c0e\u5411\u8f38\u5165\u548c\u8f38\u5165 \u4fee\u6539\u7a0b\u5f0f\u7684\u8f38\u51fa\u548c\u8f38\u5165 \u5982\u4e0b\u6307\u4ee4\u6240\u793a\uff0cGETDATA \u6703\u5f9e input \u8b80\u53d6\u8cc7\u6599\uff0c\u518d\u5c07\u7d50\u679c\u5beb\u5165 output $ GETDATA &lt; input &gt; output \u5982\u679c\u662f\u8981\u91cd\u65b0\u5c0e\u5411\u932f\u8aa4\u8a0a\u606f\uff0c\u53ef\u80fd\u900f\u904e\u63cf\u6558\u7b26\u6578\u5b57\u4f86\u8abf\u6574\uff0cstdin \u70ba 0 \uff0c stdout \u70ba 1\u00a0 \uff0c stderr \u70ba 2 \u3002 \u4e0b\u65b9\u6307\u4ee4\u70ba\u5c07\u932f\u8aa4\u8a0a\u606f\u5beb\u5165err.log $ GETDATA 2&gt; err.log \u4e5f\u53ef\u4ee5\u5c07\u6b63\u5e38\u8f38\u51fa\u548c\u932f\u8aa4\u8a0a\u606f\u5beb\u5728\u4e00\u8d77\uff0c\u4e0d\u904e\u8981\u900f\u904e\u932f\u8aa4\u8a0a\u606f\u90a3\u908a\u8981\u4f7f\u7528 &amp;1 \uff0c\u5982\u4e0b\u6240\u793a\uff0c\u6703\u5c07\u8f38\u5165\u548c\u932f\u8aa4\u8a0a\u606f\u90fd\u5beb\u5165 output\u9019\u500b\u6a94\u6848\u3002 $ GETDATA &gt; output 2&gt; &amp;1 \u4e5f\u53ef\u4ee5\u9019\u6a23\u5beb $ GETDATA &amp;&gt; output \u5982\u679c\u4e0d\u60f3\u8981\u8f38\u51fa\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5c0e\u5411 \/dev\/null \u9019\u500b\u7279\u6b8a\u6a94\u6848\u3002 \/dev\/null \u6703\u4e1f\u68c4\u4e00\u5207\u5beb\u5165\u5176\u4e2d\u7684\u8cc7\u6599\uff08\u4f46\u5831\u544a\u5beb\u5165\u64cd\u4f5c\u6210\u529f\uff09\uff0c\u8b80\u53d6\u5b83\u5247\u6703\u7acb\u5373\u5f97\u5230\u4e00\u500bEOF\u3002\u02cb $ GETDATA &gt; \/dev\/null \u5982\u679c\u60f3\u8981\u540c\u6642\u6aa2\u8996\u8f38\u5165\uff0c\u53c8\u60f3\u8981\u5c07\u5b83\u8f38\u51fa\u5230\u6a94\u6848\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 tee \u6307\u4ee4\u3002 \u4e0b\u5217\u6307\u4ee4\u5c31\u662f\u540c\u6642\u5728\u87a2\u5e55\u986f\u793a\u53c8\u5c07\u8f38\u51fa\u5b58\u5728 output\u3002 $ GETDATA | tee output tee -a \u7684\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5167\u5bb9\u9644\u52a0\u5728\u6307\u5b9a\u6a94\u6848\u5f8c\u9762\uff0c\u800c\u4e0d\u6703\u76f4\u63a5\u8986\u84cb\u6389\u3002 | \u5b57\u5143\u662f\u6240\u8b02\u7684\u7ba1\u7dda ( pipe )\u3002\u80fd\u5920\u5c07\u67d0\u4e00\u547d\u4ee4\u6216\u6307\u4ee4\u7a3f\u7684\u8f38\u51fa\u62ff\u4f86\u7576\u6210\u5225\u7684\u7a0b\u5e8f\u7684\u8f38\u5165\u3002 \u4e0d\u904e\u5982\u679c\u53ea\u4f7f\u7528 &gt; \u7684\u8a71\uff0c\u6a94\u6848\u4e0d\u662f\u65b0\u5efa\u5c31\u662f\u8986\u84cb\uff0c\u5982\u679c\u60f3\u8981\u4fdd\u5b58\u539f\u6709\u7684\u8cc7\u6599\uff0c\u9808\u6539\u7528 &gt;&gt; \u3002 $ GETDATA &gt;&gt; output \u80cc\u666f\u57f7\u884c \u82e5\u8981\u5728\u80cc\u666f\u57f7\u884c\uff0c\u53ef\u4ee5\u5728\u6307\u4ee4\u6700\u5f8c\u9762\u52a0\u4e0a &amp; $ GETDATA &amp;&gt; output &amp; \u5982\u679c\u8981\u78ba\u8a8d\u76ee\u524d\u5728\u80cc\u666f\u57f7\u884c\u7684\u4f5c\u696d\uff0c\u53ef\u4ee5\u4f7f\u7528 jobs \u6307\u4ee4\u3002 \u82e5\u8981\u5c07\u7a0b\u5e8f\u62c9\u56de\u4f86\uff0c\u53ef\u4ee5\u9069\u7528 fg \u6307\u4ee4\u3002 \u82e5\u7a0b\u5f0f\u5728\u524d\u7aef\u57f7\u884c\uff0c \u53ef\u4ee5\u900f\u904e Ctrl-Z \u5c07\u7a0b\u5f0f\u66ab\u505c\uff0c\u7136\u5f8c\u900f\u904e bg \u5c07\u5176\u79fb\u5230\u80cc\u666f\u57f7\u884c\u3002 \u7c21\u55ae\u6574\u7406 Ctrl-z\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\uff0c\u4f46\u4efb\u52d9\u4e26\u6c92\u6709\u7d50\u675f\uff0c\u5728\u9032\u7a0b\u4e2d\u986f\u793a\u639b\u8d77\u72c0\u614b\u3002(\u639b\u8d77\u662f\u6307\u5728\u4f5c\u696d\u7cfb\u7d71\u884c\u7a0b\u7ba1\u7406\u5c07\u524d\u53f0\u7684\u884c\u7a0b\u66ab\u505c(suspend)\u4e26\u8f49\u5165\u5f8c\u53f0\u7684\u52d5\u4f5c) Ctrl-c\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\u7a0b\u5e8f\u7684\u57f7\u884c\u3002 Ctrl-d\u00a0 \uff0c\u8868\u793a EOF \u3002 jobs \uff0c\u67e5\u770b\u80cc\u666f\u57f7\u884c\u72c0\u614b\u3002 fg \uff0c \u5c07\u80cc\u666f\u57f7\u884c\u7684\u7a0b\u5e8f\u62c9\u5230\u524d\u7aef\uff0c\u9700\u8981\u5728\u6307\u4ee4\u5f8c\u9762\u52a0\u4e0a %jobnumber ( \u57f7\u884c\u7684\u5e8f\u865f ) bg \uff0c\u00a0\u00a0 \u5c07\u5f8c\u7aef\u66ab\u505c\u7684\u4efb\u52d9\uff0c\u7e7c\u7e8c\u57f7\u884c \uff1b\u82e5\u5f8c\u7aef\u6709\u591a\u500b\u4efb\u52d9\uff0c\u53ef\u4ee5\u900f\u904e%jobnumber \u8abf\u7528\u3002 Ctrl-s Suspend output Ctrl-q Resume output Ctrl-o Discard output Ctrl-l Clear screen<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[17,5],"tags":[],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-bash","category-research-study"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>bash - \u8f38\u5165\u8207\u8f38\u5165 - Ares Vlog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.yuyiares.com\/?p=174\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"bash - \u8f38\u5165\u8207\u8f38\u5165 - Ares Vlog\" \/>\n<meta property=\"og:description\" content=\"\u5148\u4ecb\u7d39\u4e00\u4e0bbash Bash\uff0cUnix shell\u7684\u4e00\u7a2e\u3002 \u5b83\u662f\u547d\u7406\u8655\u7406\u5668\u7684\u4e00\u7a2e\uff0c\u901a\u5e38\u57f7\u884c\u65bc\u6587\u5b57\u7a97\u53e3\u4e2d\uff0c\u4e26\u80fd\u57f7\u884c\u4f7f\u7528\u8005\u76f4\u63a5\u8f38\u5165\u7684\u547d\u4ee4\u3002Bash\u9084\u80fd\u5f9e\u6a94\u6848\u4e2d\u8b80\u53d6\u547d\u4ee4\uff0c\u9019\u6a23\u7684\u6a94\u6848\u7a31\u70ba\u6307\u4ee4\u78bc\u3002 \u76ee\u524d\u5728\u6240\u6709\u7684 Linux \u7248\u672c\u90fd\u53ef\u770b\u5230\u5b83\u7684\u5f71\u5b50\uff0c\u5728 Windows \u4e5f\u540c\u6a23\u5982\u6b64\uff1b\u7531\u65bc\u5b83\u7684\u6280\u8853\u53ca\u6307\u4ee4\u78bc\u53ef\u4ee5\u8de8\u5e73\u53f0\u904b\u4f5c\uff0c\u4f7f Bash \u6210\u70ba\u4e00\u500b\u5f88\u65b9\u4fbf\u7684\u6280\u8853\u3002 \u5728\u4e0a\u8ff0\u7684\u524d\u63d0\u4e0b\uff0c\u5b83\u66ff\u653b\u64ca\u4eba\u54e1\u548c\u6ef2\u900f\u6e2c\u8a66\u4eba\u54e1\u5e36\u4f86\u7368\u7279\u7684\u512a\u52e2\uff0c\u56e0\u70ba\u5b83\u4e0d\u9700\u8981\u984d\u5916\u7684\u5b89\u88dd\u5957\u4ef6\u5c31\u53ef\u4ee5\u5728\u76ee\u6a19\u7cfb\u7d71\u57f7\u884c\u3002 \u8f38\u5165\/\u8f38\u51fa \u5728\u4e00\u500b\u57f7\u884c\u4e2d\u7684\u7a0b\u5f0f\uff0c\u53eb\u505a\u7a0b\u5e8f\u3002 \u5728\u4f5c\u696d\u7cfb\u7d71\u7684\u7a0b\u5e8f\uff0c\u90fd\u6703\u6709\u4e09\u7a2e\u6a94\u6848\u63cf\u6558\u7b26(file descriptors)\u3002 Standard input (stdin\/STDIN_FILENO) Standard output (stdout\/STDOUT_FILENO) Standard error (stderr\/STDERR_FILEND) Standard input \u7a0b\u5f0f\u7684\u9810\u5b9a\u8f38\u5165\u4f86\u6e90\uff0c\u9810\u5b9a\u70ba\u9375\u76e4\u8f38\u5165\u7684\u6587\u5b57\u3002 Standard output \u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u9810\u8a2d\u70ba\u5728\u57f7\u884c\u7684 shell \u8996\u7a97\u5167\u8f38\u51fa\u3002 Standard error \u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u4f46\u6bd4\u8f03\u4e0d\u540c\u7684\u662f Standard error \u53ea\u6703\u6709\u932f\u8aa4\u8a0a\u606f\u3002 \u9700\u8981\u6839\u64da\u64b0\u5beb\u8005\u6c7a\u5b9a\u8c46\u82b1(\u932f\u8aa4\u8a0a\u606f)\u662f\u8981\u5674\u5728 stderr \u6216\u662f stdout \u3002 \u91cd\u5c0e\u5411\u8f38\u5165\u548c\u8f38\u5165 \u4fee\u6539\u7a0b\u5f0f\u7684\u8f38\u51fa\u548c\u8f38\u5165 \u5982\u4e0b\u6307\u4ee4\u6240\u793a\uff0cGETDATA \u6703\u5f9e input \u8b80\u53d6\u8cc7\u6599\uff0c\u518d\u5c07\u7d50\u679c\u5beb\u5165 output $ GETDATA &lt; input &gt; output \u5982\u679c\u662f\u8981\u91cd\u65b0\u5c0e\u5411\u932f\u8aa4\u8a0a\u606f\uff0c\u53ef\u80fd\u900f\u904e\u63cf\u6558\u7b26\u6578\u5b57\u4f86\u8abf\u6574\uff0cstdin \u70ba 0 \uff0c stdout \u70ba 1\u00a0 \uff0c stderr \u70ba 2 \u3002 \u4e0b\u65b9\u6307\u4ee4\u70ba\u5c07\u932f\u8aa4\u8a0a\u606f\u5beb\u5165err.log $ GETDATA 2&gt; err.log \u4e5f\u53ef\u4ee5\u5c07\u6b63\u5e38\u8f38\u51fa\u548c\u932f\u8aa4\u8a0a\u606f\u5beb\u5728\u4e00\u8d77\uff0c\u4e0d\u904e\u8981\u900f\u904e\u932f\u8aa4\u8a0a\u606f\u90a3\u908a\u8981\u4f7f\u7528 &amp;1 \uff0c\u5982\u4e0b\u6240\u793a\uff0c\u6703\u5c07\u8f38\u5165\u548c\u932f\u8aa4\u8a0a\u606f\u90fd\u5beb\u5165 output\u9019\u500b\u6a94\u6848\u3002 $ GETDATA &gt; output 2&gt; &amp;1 \u4e5f\u53ef\u4ee5\u9019\u6a23\u5beb $ GETDATA &amp;&gt; output \u5982\u679c\u4e0d\u60f3\u8981\u8f38\u51fa\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5c0e\u5411 \/dev\/null \u9019\u500b\u7279\u6b8a\u6a94\u6848\u3002 \/dev\/null \u6703\u4e1f\u68c4\u4e00\u5207\u5beb\u5165\u5176\u4e2d\u7684\u8cc7\u6599\uff08\u4f46\u5831\u544a\u5beb\u5165\u64cd\u4f5c\u6210\u529f\uff09\uff0c\u8b80\u53d6\u5b83\u5247\u6703\u7acb\u5373\u5f97\u5230\u4e00\u500bEOF\u3002\u02cb $ GETDATA &gt; \/dev\/null \u5982\u679c\u60f3\u8981\u540c\u6642\u6aa2\u8996\u8f38\u5165\uff0c\u53c8\u60f3\u8981\u5c07\u5b83\u8f38\u51fa\u5230\u6a94\u6848\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 tee \u6307\u4ee4\u3002 \u4e0b\u5217\u6307\u4ee4\u5c31\u662f\u540c\u6642\u5728\u87a2\u5e55\u986f\u793a\u53c8\u5c07\u8f38\u51fa\u5b58\u5728 output\u3002 $ GETDATA | tee output tee -a \u7684\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5167\u5bb9\u9644\u52a0\u5728\u6307\u5b9a\u6a94\u6848\u5f8c\u9762\uff0c\u800c\u4e0d\u6703\u76f4\u63a5\u8986\u84cb\u6389\u3002 | \u5b57\u5143\u662f\u6240\u8b02\u7684\u7ba1\u7dda ( pipe )\u3002\u80fd\u5920\u5c07\u67d0\u4e00\u547d\u4ee4\u6216\u6307\u4ee4\u7a3f\u7684\u8f38\u51fa\u62ff\u4f86\u7576\u6210\u5225\u7684\u7a0b\u5e8f\u7684\u8f38\u5165\u3002 \u4e0d\u904e\u5982\u679c\u53ea\u4f7f\u7528 &gt; \u7684\u8a71\uff0c\u6a94\u6848\u4e0d\u662f\u65b0\u5efa\u5c31\u662f\u8986\u84cb\uff0c\u5982\u679c\u60f3\u8981\u4fdd\u5b58\u539f\u6709\u7684\u8cc7\u6599\uff0c\u9808\u6539\u7528 &gt;&gt; \u3002 $ GETDATA &gt;&gt; output \u80cc\u666f\u57f7\u884c \u82e5\u8981\u5728\u80cc\u666f\u57f7\u884c\uff0c\u53ef\u4ee5\u5728\u6307\u4ee4\u6700\u5f8c\u9762\u52a0\u4e0a &amp; $ GETDATA &amp;&gt; output &amp; \u5982\u679c\u8981\u78ba\u8a8d\u76ee\u524d\u5728\u80cc\u666f\u57f7\u884c\u7684\u4f5c\u696d\uff0c\u53ef\u4ee5\u4f7f\u7528 jobs \u6307\u4ee4\u3002 \u82e5\u8981\u5c07\u7a0b\u5e8f\u62c9\u56de\u4f86\uff0c\u53ef\u4ee5\u9069\u7528 fg \u6307\u4ee4\u3002 \u82e5\u7a0b\u5f0f\u5728\u524d\u7aef\u57f7\u884c\uff0c \u53ef\u4ee5\u900f\u904e Ctrl-Z \u5c07\u7a0b\u5f0f\u66ab\u505c\uff0c\u7136\u5f8c\u900f\u904e bg \u5c07\u5176\u79fb\u5230\u80cc\u666f\u57f7\u884c\u3002 \u7c21\u55ae\u6574\u7406 Ctrl-z\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\uff0c\u4f46\u4efb\u52d9\u4e26\u6c92\u6709\u7d50\u675f\uff0c\u5728\u9032\u7a0b\u4e2d\u986f\u793a\u639b\u8d77\u72c0\u614b\u3002(\u639b\u8d77\u662f\u6307\u5728\u4f5c\u696d\u7cfb\u7d71\u884c\u7a0b\u7ba1\u7406\u5c07\u524d\u53f0\u7684\u884c\u7a0b\u66ab\u505c(suspend)\u4e26\u8f49\u5165\u5f8c\u53f0\u7684\u52d5\u4f5c) Ctrl-c\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\u7a0b\u5e8f\u7684\u57f7\u884c\u3002 Ctrl-d\u00a0 \uff0c\u8868\u793a EOF \u3002 jobs \uff0c\u67e5\u770b\u80cc\u666f\u57f7\u884c\u72c0\u614b\u3002 fg \uff0c \u5c07\u80cc\u666f\u57f7\u884c\u7684\u7a0b\u5e8f\u62c9\u5230\u524d\u7aef\uff0c\u9700\u8981\u5728\u6307\u4ee4\u5f8c\u9762\u52a0\u4e0a %jobnumber ( \u57f7\u884c\u7684\u5e8f\u865f ) bg \uff0c\u00a0\u00a0 \u5c07\u5f8c\u7aef\u66ab\u505c\u7684\u4efb\u52d9\uff0c\u7e7c\u7e8c\u57f7\u884c \uff1b\u82e5\u5f8c\u7aef\u6709\u591a\u500b\u4efb\u52d9\uff0c\u53ef\u4ee5\u900f\u904e%jobnumber \u8abf\u7528\u3002 Ctrl-s Suspend output Ctrl-q Resume output Ctrl-o Discard output Ctrl-l Clear screen\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.yuyiares.com\/?p=174\" \/>\n<meta property=\"og:site_name\" content=\"Ares Vlog\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-04T12:27:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-30T05:11:43+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005:\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9810\u4f30\u95b1\u8b80\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\u9418\" \/>\n<script type=\"application\/ld+json\" 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Windows \u4e5f\u540c\u6a23\u5982\u6b64\uff1b\u7531\u65bc\u5b83\u7684\u6280\u8853\u53ca\u6307\u4ee4\u78bc\u53ef\u4ee5\u8de8\u5e73\u53f0\u904b\u4f5c\uff0c\u4f7f Bash \u6210\u70ba\u4e00\u500b\u5f88\u65b9\u4fbf\u7684\u6280\u8853\u3002 \u5728\u4e0a\u8ff0\u7684\u524d\u63d0\u4e0b\uff0c\u5b83\u66ff\u653b\u64ca\u4eba\u54e1\u548c\u6ef2\u900f\u6e2c\u8a66\u4eba\u54e1\u5e36\u4f86\u7368\u7279\u7684\u512a\u52e2\uff0c\u56e0\u70ba\u5b83\u4e0d\u9700\u8981\u984d\u5916\u7684\u5b89\u88dd\u5957\u4ef6\u5c31\u53ef\u4ee5\u5728\u76ee\u6a19\u7cfb\u7d71\u57f7\u884c\u3002 \u8f38\u5165\/\u8f38\u51fa \u5728\u4e00\u500b\u57f7\u884c\u4e2d\u7684\u7a0b\u5f0f\uff0c\u53eb\u505a\u7a0b\u5e8f\u3002 \u5728\u4f5c\u696d\u7cfb\u7d71\u7684\u7a0b\u5e8f\uff0c\u90fd\u6703\u6709\u4e09\u7a2e\u6a94\u6848\u63cf\u6558\u7b26(file descriptors)\u3002 Standard input (stdin\/STDIN_FILENO) Standard output (stdout\/STDOUT_FILENO) Standard error (stderr\/STDERR_FILEND) Standard input \u7a0b\u5f0f\u7684\u9810\u5b9a\u8f38\u5165\u4f86\u6e90\uff0c\u9810\u5b9a\u70ba\u9375\u76e4\u8f38\u5165\u7684\u6587\u5b57\u3002 Standard output \u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u9810\u8a2d\u70ba\u5728\u57f7\u884c\u7684 shell \u8996\u7a97\u5167\u8f38\u51fa\u3002 Standard error \u70ba\u7a0b\u5f0f\u8f38\u51fa\u7684\u4f4d\u7f6e\uff0c\u4f46\u6bd4\u8f03\u4e0d\u540c\u7684\u662f Standard error \u53ea\u6703\u6709\u932f\u8aa4\u8a0a\u606f\u3002 \u9700\u8981\u6839\u64da\u64b0\u5beb\u8005\u6c7a\u5b9a\u8c46\u82b1(\u932f\u8aa4\u8a0a\u606f)\u662f\u8981\u5674\u5728 stderr \u6216\u662f stdout \u3002 \u91cd\u5c0e\u5411\u8f38\u5165\u548c\u8f38\u5165 \u4fee\u6539\u7a0b\u5f0f\u7684\u8f38\u51fa\u548c\u8f38\u5165 \u5982\u4e0b\u6307\u4ee4\u6240\u793a\uff0cGETDATA \u6703\u5f9e input \u8b80\u53d6\u8cc7\u6599\uff0c\u518d\u5c07\u7d50\u679c\u5beb\u5165 output $ GETDATA &lt; input &gt; output \u5982\u679c\u662f\u8981\u91cd\u65b0\u5c0e\u5411\u932f\u8aa4\u8a0a\u606f\uff0c\u53ef\u80fd\u900f\u904e\u63cf\u6558\u7b26\u6578\u5b57\u4f86\u8abf\u6574\uff0cstdin \u70ba 0 \uff0c stdout \u70ba 1\u00a0 \uff0c stderr \u70ba 2 \u3002 \u4e0b\u65b9\u6307\u4ee4\u70ba\u5c07\u932f\u8aa4\u8a0a\u606f\u5beb\u5165err.log $ GETDATA 2&gt; err.log \u4e5f\u53ef\u4ee5\u5c07\u6b63\u5e38\u8f38\u51fa\u548c\u932f\u8aa4\u8a0a\u606f\u5beb\u5728\u4e00\u8d77\uff0c\u4e0d\u904e\u8981\u900f\u904e\u932f\u8aa4\u8a0a\u606f\u90a3\u908a\u8981\u4f7f\u7528 &amp;1 \uff0c\u5982\u4e0b\u6240\u793a\uff0c\u6703\u5c07\u8f38\u5165\u548c\u932f\u8aa4\u8a0a\u606f\u90fd\u5beb\u5165 output\u9019\u500b\u6a94\u6848\u3002 $ GETDATA &gt; output 2&gt; &amp;1 \u4e5f\u53ef\u4ee5\u9019\u6a23\u5beb $ GETDATA &amp;&gt; output \u5982\u679c\u4e0d\u60f3\u8981\u8f38\u51fa\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5c0e\u5411 \/dev\/null \u9019\u500b\u7279\u6b8a\u6a94\u6848\u3002 \/dev\/null \u6703\u4e1f\u68c4\u4e00\u5207\u5beb\u5165\u5176\u4e2d\u7684\u8cc7\u6599\uff08\u4f46\u5831\u544a\u5beb\u5165\u64cd\u4f5c\u6210\u529f\uff09\uff0c\u8b80\u53d6\u5b83\u5247\u6703\u7acb\u5373\u5f97\u5230\u4e00\u500bEOF\u3002\u02cb $ GETDATA &gt; \/dev\/null \u5982\u679c\u60f3\u8981\u540c\u6642\u6aa2\u8996\u8f38\u5165\uff0c\u53c8\u60f3\u8981\u5c07\u5b83\u8f38\u51fa\u5230\u6a94\u6848\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 tee \u6307\u4ee4\u3002 \u4e0b\u5217\u6307\u4ee4\u5c31\u662f\u540c\u6642\u5728\u87a2\u5e55\u986f\u793a\u53c8\u5c07\u8f38\u51fa\u5b58\u5728 output\u3002 $ GETDATA | tee output tee -a \u7684\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u8f38\u51fa\u5167\u5bb9\u9644\u52a0\u5728\u6307\u5b9a\u6a94\u6848\u5f8c\u9762\uff0c\u800c\u4e0d\u6703\u76f4\u63a5\u8986\u84cb\u6389\u3002 | \u5b57\u5143\u662f\u6240\u8b02\u7684\u7ba1\u7dda ( pipe )\u3002\u80fd\u5920\u5c07\u67d0\u4e00\u547d\u4ee4\u6216\u6307\u4ee4\u7a3f\u7684\u8f38\u51fa\u62ff\u4f86\u7576\u6210\u5225\u7684\u7a0b\u5e8f\u7684\u8f38\u5165\u3002 \u4e0d\u904e\u5982\u679c\u53ea\u4f7f\u7528 &gt; \u7684\u8a71\uff0c\u6a94\u6848\u4e0d\u662f\u65b0\u5efa\u5c31\u662f\u8986\u84cb\uff0c\u5982\u679c\u60f3\u8981\u4fdd\u5b58\u539f\u6709\u7684\u8cc7\u6599\uff0c\u9808\u6539\u7528 &gt;&gt; \u3002 $ GETDATA &gt;&gt; output \u80cc\u666f\u57f7\u884c \u82e5\u8981\u5728\u80cc\u666f\u57f7\u884c\uff0c\u53ef\u4ee5\u5728\u6307\u4ee4\u6700\u5f8c\u9762\u52a0\u4e0a &amp; $ GETDATA &amp;&gt; output &amp; \u5982\u679c\u8981\u78ba\u8a8d\u76ee\u524d\u5728\u80cc\u666f\u57f7\u884c\u7684\u4f5c\u696d\uff0c\u53ef\u4ee5\u4f7f\u7528 jobs \u6307\u4ee4\u3002 \u82e5\u8981\u5c07\u7a0b\u5e8f\u62c9\u56de\u4f86\uff0c\u53ef\u4ee5\u9069\u7528 fg \u6307\u4ee4\u3002 \u82e5\u7a0b\u5f0f\u5728\u524d\u7aef\u57f7\u884c\uff0c \u53ef\u4ee5\u900f\u904e Ctrl-Z \u5c07\u7a0b\u5f0f\u66ab\u505c\uff0c\u7136\u5f8c\u900f\u904e bg \u5c07\u5176\u79fb\u5230\u80cc\u666f\u57f7\u884c\u3002 \u7c21\u55ae\u6574\u7406 Ctrl-z\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\uff0c\u4f46\u4efb\u52d9\u4e26\u6c92\u6709\u7d50\u675f\uff0c\u5728\u9032\u7a0b\u4e2d\u986f\u793a\u639b\u8d77\u72c0\u614b\u3002(\u639b\u8d77\u662f\u6307\u5728\u4f5c\u696d\u7cfb\u7d71\u884c\u7a0b\u7ba1\u7406\u5c07\u524d\u53f0\u7684\u884c\u7a0b\u66ab\u505c(suspend)\u4e26\u8f49\u5165\u5f8c\u53f0\u7684\u52d5\u4f5c) Ctrl-c\u00a0 \uff0c \u5f37\u5236\u4e2d\u65b7\u7a0b\u5e8f\u7684\u57f7\u884c\u3002 Ctrl-d\u00a0 \uff0c\u8868\u793a EOF \u3002 jobs \uff0c\u67e5\u770b\u80cc\u666f\u57f7\u884c\u72c0\u614b\u3002 fg \uff0c \u5c07\u80cc\u666f\u57f7\u884c\u7684\u7a0b\u5e8f\u62c9\u5230\u524d\u7aef\uff0c\u9700\u8981\u5728\u6307\u4ee4\u5f8c\u9762\u52a0\u4e0a %jobnumber ( \u57f7\u884c\u7684\u5e8f\u865f ) bg \uff0c\u00a0\u00a0 \u5c07\u5f8c\u7aef\u66ab\u505c\u7684\u4efb\u52d9\uff0c\u7e7c\u7e8c\u57f7\u884c \uff1b\u82e5\u5f8c\u7aef\u6709\u591a\u500b\u4efb\u52d9\uff0c\u53ef\u4ee5\u900f\u904e%jobnumber \u8abf\u7528\u3002 Ctrl-s Suspend output Ctrl-q Resume output Ctrl-o Discard output 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