{"id":17577,"date":"2024-11-18T15:03:52","date_gmt":"2024-11-18T07:03:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/17577\/"},"modified":"2024-11-18T15:03:52","modified_gmt":"2024-11-18T07:03:52","slug":"linux%e7%b2%be%e5%87%86%e5%88%a0%e9%99%a4%e6%96%87%e4%bb%b6%e6%9c%ab%e5%b0%be%e8%a1%8c%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/17577\/","title":{"rendered":"Linux\u7cbe\u51c6\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u6559\u7a0b"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/170927317358133.jpg\" class=\"aligncenter\" title=\"Linux\u7cbe\u51c6\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u6559\u7a0b\u63d2\u56fe\" alt=\"Linux\u7cbe\u51c6\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u6559\u7a0b\u63d2\u56fe\" \/><\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u5bf9\u6587\u672c\u6587\u4ef6\u8fdb\u884c\u7cbe\u51c6\u7684\u64cd\u4f5c\uff0c\u6bd4\u5982\u5220\u9664\u6587\u4ef6\u7684\u672b\u5c3e\u884c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u5b9e\u73b0\u8fd9\u4e2a\u76ee\u7684\uff0c\u5305\u62ec\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u6587\u672c\u5904\u7406\u5de5\u5177\u2014\u2014sed\u3002sed\u662f\u4e00\u4e2a\u6d41\u7f16\u8f91\u5668\uff0c\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u8fdb\u884c\u6587\u672c\u7684\u5904\u7406\u548c\u7f16\u8f91\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528sed\u547d\u4ee4\u6765\u5220\u9664\u6587\u4ef6\u7684\u672b\u5c3e\u884c\u3002<\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u6587\u672c\u6587\u4ef6example.txt\uff0c\u5176\u4e2d\u5305\u542b\u591a\u884c\u6587\u672c\u5185\u5bb9\u3002\u6211\u4eec\u5e0c\u671b\u5220\u9664\u8be5\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b9e\u73b0\uff1a<\/p>\n<pre>sed -i '$d' example.txt<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8ba9\u6211\u4eec\u6765\u8be6\u7ec6\u89e3\u91ca\u4e00\u4e0b\u8fd9\u4e2a\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li>sed\uff1a\u8868\u793a\u8c03\u7528sed\u547d\u4ee4\u3002<\/li>\n<li>-i\uff1a\u8868\u793a\u76f4\u63a5\u5728\u539f\u6587\u4ef6\u4e0a\u8fdb\u884c\u4fee\u6539\uff0c\u800c\u4e0d\u662f\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u7ed3\u679c\u3002<\/li>\n<li>$d\uff1a\u8fd9\u662fsed\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c$\u8868\u793a\u6700\u540e\u4e00\u884c\uff0cd\u8868\u793a\u5220\u9664\u8be5\u884c\u3002<\/li>\n<\/ul>\n<p>\u6267\u884c\u8fd9\u4e2a\u547d\u4ee4\u540e\uff0cexample.txt\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\u5c06\u88ab\u5220\u9664\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u5c06\u76f4\u63a5\u4fee\u6539\u539f\u6587\u4ef6\uff0c\u6240\u4ee5\u8bf7\u52a1\u5fc5\u5728\u64cd\u4f5c\u524d\u5907\u4efd\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u8981\u5220\u9664\u5012\u6570\u7b2c\u4e8c\u884c\uff0c\u53ef\u4ee5\u7a0d\u4f5c\u4fee\u6539\uff1a<\/p>\n<pre>sed -i '$-1d' example.txt<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u4e2a\u547d\u4ee4\u4e2d\uff0c$-1\u8868\u793a\u5012\u6570\u7b2c\u4e8c\u884c\u3002\u6267\u884c\u540e\uff0cexample.txt\u6587\u4ef6\u7684\u5012\u6570\u7b2c\u4e8c\u884c\u5c06\u88ab\u5220\u9664\u3002<\/p>\n<p>\u9664\u4e86\u4f7f\u7528sed\u547d\u4ee4\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u7ed3\u5408\u5176\u4ed6\u547d\u4ee4\u5b9e\u73b0\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u7684\u64cd\u4f5c\u3002\u6bd4\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528head\u547d\u4ee4\u7ed3\u5408\u8f93\u51fa\u91cd\u5b9a\u5411\u6765\u5b9e\u73b0\uff1a<\/p>\n<pre>head -n -1 example.txt &amp;gt; temp.txt\nmv temp.txt example.txt<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u91cc\u7684head -n -1\u8868\u793a\u663e\u793a\u6587\u4ef6\u5185\u5bb9\u9664\u4e86\u6700\u540e\u4e00\u884c\u7684\u5176\u4ed6\u884c\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u4e34\u65f6\u6587\u4ef6temp.txt\u4e2d\u3002\u6700\u540e\uff0c\u5c06temp.txt\u91cd\u547d\u540d\u4e3aexample.txt\uff0c\u5373\u53ef\u5b9e\u73b0\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u603b\u7ed3\u8d77\u6765\uff0c\u901a\u8fc7sed\u547d\u4ee4\u6216\u8005\u7ed3\u5408\u5176\u4ed6\u547d\u4ee4\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5b9e\u73b0\u5bf9\u6587\u4ef6\u672b\u5c3e\u884c\u7684\u7cbe\u51c6\u5220\u9664\u64cd\u4f5c\u3002\u5f53\u9700\u8981\u5bf9\u6587\u672c\u6587\u4ef6\u8fdb\u884c\u4fee\u6539\u65f6\uff0c\u8fd9\u4e9b\u547d\u4ee4\u5c06\u4f1a\u662f\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u5e76\u8fd0\u7528\u8fd9\u4e9b\u547d\u4ee4\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLinux\u7cbe\u51c6\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u6559\u7a0b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u5bf9\u6587\u672c\u6587\u4ef6\u8fdb\u884c\u7cbe\u51c6\u7684\u64cd\u4f5c\uff0c\u6bd4\u5982\u5220\u9664\u6587\u4ef6\u7684\u672b\u5c3e\u884c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u5b9e\u73b0\u8fd9\u4e2a\u76ee\u7684\uff0c\u5305\u62ec\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u6587\u672c\u5904\u7406\u5de5\u5177\u2014\u2014sed\u3002sed\u662f\u4e00\u4e2a\u6d41\u7f16\u8f91\u5668\uff0c\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u8fdb\u884c\u6587\u672c\u7684\u5904\u7406\u548c\u7f16\u8f91\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528sed\u547d\u4ee4\u6765\u5220\u9664\u6587\u4ef6\u7684\u672b\u5c3e\u884c\u3002 \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u6587\u672c\u6587\u4ef6example.txt\uff0c\u5176\u4e2d\u5305\u542b\u591a\u884c\u6587\u672c\u5185\u5bb9\u3002\u6211\u4eec\u5e0c\u671b\u5220\u9664\u8be5\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b9e\u73b0\uff1a sed -i &#8216;$d&#8217; example.txt \u767b\u5f55\u540e\u590d\u5236 \u8ba9\u6211\u4eec\u6765\u8be6\u7ec6\u89e3\u91ca\u4e00\u4e0b\u8fd9\u4e2a\u547d\u4ee4\uff1a sed\uff1a\u8868\u793a\u8c03\u7528sed\u547d\u4ee4\u3002 -i\uff1a\u8868\u793a\u76f4\u63a5\u5728\u539f\u6587\u4ef6\u4e0a\u8fdb\u884c\u4fee\u6539\uff0c\u800c\u4e0d\u662f\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u7ed3\u679c\u3002 $d\uff1a\u8fd9\u662fsed\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c$\u8868\u793a\u6700\u540e\u4e00\u884c\uff0cd\u8868\u793a\u5220\u9664\u8be5\u884c\u3002 \u6267\u884c\u8fd9\u4e2a\u547d\u4ee4\u540e\uff0cexample.txt\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\u5c06\u88ab\u5220\u9664\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u5c06\u76f4\u63a5\u4fee\u6539\u539f\u6587\u4ef6\uff0c\u6240\u4ee5\u8bf7\u52a1\u5fc5\u5728\u64cd\u4f5c\u524d\u5907\u4efd\u6587\u4ef6\u5185\u5bb9\u3002 \u5982\u679c\u6211\u4eec\u60f3\u8981\u5220\u9664\u5012\u6570\u7b2c\u4e8c\u884c\uff0c\u53ef\u4ee5\u7a0d\u4f5c\u4fee\u6539\uff1a sed -i &#8216;$-1d&#8217; example.txt \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e2a\u547d\u4ee4\u4e2d\uff0c$-1\u8868\u793a\u5012\u6570\u7b2c\u4e8c\u884c\u3002\u6267\u884c\u540e\uff0cexample.txt\u6587\u4ef6\u7684\u5012\u6570\u7b2c\u4e8c\u884c\u5c06\u88ab\u5220\u9664\u3002 \u9664\u4e86\u4f7f\u7528sed\u547d\u4ee4\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u7ed3\u5408\u5176\u4ed6\u547d\u4ee4\u5b9e\u73b0\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u7684\u64cd\u4f5c\u3002\u6bd4\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528head\u547d\u4ee4\u7ed3\u5408\u8f93\u51fa\u91cd\u5b9a\u5411\u6765\u5b9e\u73b0\uff1a head -n -1 example.txt &amp;gt; temp.txt mv temp.txt example.txt \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u91cc\u7684head -n -1\u8868\u793a\u663e\u793a\u6587\u4ef6\u5185\u5bb9\u9664\u4e86\u6700\u540e\u4e00\u884c\u7684\u5176\u4ed6\u884c\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u4e34\u65f6\u6587\u4ef6temp.txt\u4e2d\u3002\u6700\u540e\uff0c\u5c06temp.txt\u91cd\u547d\u540d\u4e3aexample.txt\uff0c\u5373\u53ef\u5b9e\u73b0\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u7684\u64cd\u4f5c\u3002 \u603b\u7ed3\u8d77\u6765\uff0c\u901a\u8fc7sed\u547d\u4ee4\u6216\u8005\u7ed3\u5408\u5176\u4ed6\u547d\u4ee4\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5b9e\u73b0\u5bf9\u6587\u4ef6\u672b\u5c3e\u884c\u7684\u7cbe\u51c6\u5220\u9664\u64cd\u4f5c\u3002\u5f53\u9700\u8981\u5bf9\u6587\u672c\u6587\u4ef6\u8fdb\u884c\u4fee\u6539\u65f6\uff0c\u8fd9\u4e9b\u547d\u4ee4\u5c06\u4f1a\u662f\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u5e76\u8fd0\u7528\u8fd9\u4e9b\u547d\u4ee4\u3002 \u4ee5\u4e0a\u5c31\u662fLinux\u7cbe\u51c6\u5220\u9664\u6587\u4ef6\u672b\u5c3e\u884c\u6559\u7a0b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-17577","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17577","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=17577"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/17577\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=17577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=17577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=17577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}