{"id":17448,"date":"2024-11-18T15:09:27","date_gmt":"2024-11-18T07:09:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17448\/"},"modified":"2024-11-18T15:09:27","modified_gmt":"2024-11-18T07:09:27","slug":"linux-read%e5%91%bd%e4%bb%a4%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e5%8f%8a%e8%af%bb%e5%8f%96%e6%96%87%e4%bb%b6%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17448\/","title":{"rendered":"Linux read\u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\u53ca\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9"},"content":{"rendered":"

\"Linux<\/p>\n

\u3010\u5982\u4f55\u4f7f\u7528Linux read\u547d\u4ee4\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u3011<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0cread\u662f\u4e00\u4e2a\u7528\u4e8e\u4ece\u6807\u51c6\u8f93\u5165\u6216\u8005\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u7684\u547d\u4ee4\u3002\u4f7f\u7528read\u547d\u4ee4\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u83b7\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u5e76\u8fdb\u884c\u540e\u7eed\u7684\u5904\u7406\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Linux read\u547d\u4ee4\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u5305\u62ec\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \n
  1. \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/li>\n<\/ol>\n

    \u8981\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u9996\u5148\u9700\u8981\u6253\u5f00\u7ec8\u7aef\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u683c\u5f0f\u6765\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff1a<\/p>\n

    read [-options] [variable]<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5176\u4e2d\uff0c-options\u4ee3\u8868\u5404\u79cd\u9009\u9879\uff0cvariable\u4ee3\u8868\u53d8\u91cf\u540d\u79f0\uff0c\u7528\u4e8e\u5b58\u50a8\u8bfb\u53d6\u7684\u6570\u636e\u3002<\/p>\n
      \n
    1. \u4ee3\u7801\u793a\u4f8b<\/li>\n<\/ol>\n
      \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3aexample.txt\u7684\u6587\u672c\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
      Hello, this is an example file.\nWelcome to the world of Linux.<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u73b0\u5728\u6211\u4eec\u5c06\u4f7f\u7528read\u547d\u4ee4\u6765\u8bfb\u53d6\u8fd9\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u5e76\u5b58\u50a8\u5230\u53d8\u91cf\u4e2d\u3002\u5728\u7ec8\u7aef\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
      while IFS= read -r line; do\n    echo \"$line\"\ndone <p>\u6267\u884c\u4ee5\u4e0a\u547d\u4ee4\u540e\uff0c\u7ec8\u7aef\u4f1a\u8f93\u51fa\u6587\u4ef6example.txt\u7684\u5185\u5bb9\uff1a<\/p><div class=\"code\" style=\"position:relative; padding:0px; margin:0px;\"><pre class=\"brush:php;toolbar:false;\">Hello, this is an example file.\nWelcome to the world of Linux.<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u3010\u5982\u4f55\u4f7f\u7528Linux read\u547d\u4ee4\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u3011 \u5728Linux\u7cfb\u7edf\u4e2d\uff0cread\u662f\u4e00\u4e2a\u7528\u4e8e\u4ece\u6807\u51c6\u8f93\u5165\u6216\u8005\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u7684\u547d\u4ee4\u3002\u4f7f\u7528read\u547d\u4ee4\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u83b7\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u5e76\u8fdb\u884c\u540e\u7eed\u7684\u5904\u7406\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Linux read\u547d\u4ee4\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u5305\u62ec\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9 \u8981\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u9996\u5148\u9700\u8981\u6253\u5f00\u7ec8\u7aef\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u683c\u5f0f\u6765\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff1a read [-options] [variable] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c-options\u4ee3\u8868\u5404\u79cd\u9009\u9879\uff0cvariable\u4ee3\u8868\u53d8\u91cf\u540d\u79f0\uff0c\u7528\u4e8e\u5b58\u50a8\u8bfb\u53d6\u7684\u6570\u636e\u3002 \u4ee3\u7801\u793a\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3aexample.txt\u7684\u6587\u672c\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a Hello, this is an example file. Welcome to the world of Linux. \u767b\u5f55\u540e\u590d\u5236 \u73b0\u5728\u6211\u4eec\u5c06\u4f7f\u7528read\u547d\u4ee4\u6765\u8bfb\u53d6\u8fd9\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u5e76\u5b58\u50a8\u5230\u53d8\u91cf\u4e2d\u3002\u5728\u7ec8\u7aef\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a while IFS= read -r line; do echo “$line” done <p>\u6267\u884c\u4ee5\u4e0a\u547d\u4ee4\u540e\uff0c\u7ec8\u7aef\u4f1a\u8f93\u51fa\u6587\u4ef6example.txt\u7684\u5185\u5bb9\uff1a<\/p><div class=”code” style=”position:relative; padding:0px; margin:0px;”><pre class=”brush:php;toolbar:false;”>Hello, this is an example file. Welcome to the world of Linux. \u767b\u5f55\u540e\u590d\u5236<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-17448","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=17448"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17448\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=17448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=17448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=17448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}