{"id":68668,"date":"2025-05-16T10:15:22","date_gmt":"2025-05-16T02:15:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/?p=68668"},"modified":"2025-05-16T10:15:22","modified_gmt":"2025-05-16T02:15:22","slug":"linux-unix-%e4%b8%ad%e7%9a%84-cut-%e5%91%bd%e4%bb%a4%e8%af%a6%e8%a7%a3%e4%b8%8e%e5%ae%9e%e6%88%98%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/68668\/","title":{"rendered":"Linux\/Unix \u4e2d\u7684 cut \u547d\u4ee4\u8be6\u89e3\u4e0e\u5b9e\u6218\u6280\u5de7"},"content":{"rendered":"<h2>\u5f15\u8a00<\/h2>\n<p>\u5728\u65e5\u5e38\u7684 Linux \u6216 Unix \u7cfb\u7edf\u7ba1\u7406\u4e2d\uff0c\u6587\u672c\u5904\u7406\u5de5\u5177\u626e\u6f14\u7740\u4e3e\u8db3\u8f7b\u91cd\u7684\u89d2\u8272\u3002\u5c24\u5176\u662f\u5f53\u6211\u4eec\u9700\u8981\u4ece\u7cfb\u7edf\u6587\u4ef6\u4e2d\u63d0\u53d6\u6307\u5b9a\u5b57\u6bb5\u4fe1\u606f\u65f6\uff0c<code>cut<\/code> \u547d\u4ee4\u4fbf\u6210\u4e3a\u4e00\u6b3e\u9ad8\u6548\u800c\u5b9e\u7528\u7684\u5229\u5668\u3002\u672c\u6587\u5c06\u6df1\u5165\u8bb2\u89e3 <code>cut<\/code> \u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u914d\u5408\u5b9e\u9645\u6848\u4f8b\u5e2e\u52a9\u5927\u5bb6\u638c\u63e1\u5176\u5f3a\u5927\u529f\u80fd\u3002\u540c\u65f6\uff0c\u4e3a\u9ad8\u6027\u80fd\u7cfb\u7edf\u8fd0\u7ef4\u63a8\u8350\u9002\u914d\u6027\u4f18\u5f02\u7684 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong>\uff0c\u52a9\u529b\u9ad8\u8d1f\u8f7d\u573a\u666f\u4e0b\u7684\u5904\u7406\u9700\u6c42\u3002<\/p>\n<hr \/>\n<h2>\u4e00\u3001cut \u547d\u4ee4\u7b80\u4ecb\u4e0e\u57fa\u672c\u8bed\u6cd5<\/h2>\n<p><code>cut<\/code> \u547d\u4ee4\u4e3b\u8981\u7528\u4e8e\u4ece\u6587\u672c\u6587\u4ef6\u4e2d\u63d0\u53d6\u6307\u5b9a\u5217\uff08\u5b57\u6bb5\u3001\u5b57\u7b26\u6216\u5b57\u8282\uff09\u7684\u5185\u5bb9\uff0c\u901a\u5e38\u4e0e <code>|<\/code> \u7ba1\u9053\u7b26\u7ed3\u5408\u4f7f\u7528\uff0c\u5b9e\u73b0\u5bf9\u5927\u89c4\u6a21\u6570\u636e\u7684\u9ad8\u6548\u622a\u53d6\u4e0e\u5904\u7406\u3002\u5176\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-bash\">cut OPTION... [FILE]...\r\n<\/code><\/pre>\n<p>\u5e38\u7528\u9009\u9879\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>-f<\/code>\uff1a\u63d0\u53d6\u6307\u5b9a\u7684\u5b57\u6bb5\uff08\u9ed8\u8ba4\u4ee5 Tab \u4e3a\u5206\u9694\u7b26\uff09<\/li>\n<li><code>-d<\/code>\uff1a\u8bbe\u7f6e\u5b57\u6bb5\u5206\u9694\u7b26<\/li>\n<li><code>-b<\/code>\uff1a\u6309\u5b57\u8282\u63d0\u53d6<\/li>\n<li><code>-c<\/code>\uff1a\u6309\u5b57\u7b26\u63d0\u53d6<\/li>\n<li><code>--complement<\/code>\uff1a\u8f93\u51fa\u9664\u6307\u5b9a\u5b57\u6bb5\u4ee5\u5916\u7684\u5185\u5bb9<\/li>\n<li><code>--output-delimiter<\/code>\uff1a\u81ea\u5b9a\u4e49\u8f93\u51fa\u5b57\u6bb5\u7684\u5206\u9694\u7b26<\/li>\n<li><code>--only-delimited<\/code>\uff1a\u5ffd\u7565\u4e0d\u5305\u542b\u5206\u9694\u7b26\u7684\u884c<\/li>\n<\/ul>\n<hr \/>\n<h2>\u4e8c\u3001\u5b9e\u6218\u6848\u4f8b\u8be6\u89e3<\/h2>\n<h3>1. \u4f7f\u7528\u5206\u9694\u7b26\u63d0\u53d6\u5b57\u6bb5<\/h3>\n<p>\u4ee5\u4e0b\u547d\u4ee4\u4ece <code>\/etc\/passwd<\/code> \u4e2d\u63d0\u53d6\u7b2c\u4e00\u5b57\u6bb5\uff08\u7528\u6237\u540d\uff09\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -d':' -f1 \/etc\/passwd\r\n<\/code><\/pre>\n<p>\u4ece\u5305\u542b\u7a7a\u683c\u7684\u6587\u672c\u4e2d\u63d0\u53d6\u7b2c\u4e00\u5217\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -d\" \" -f1 content.txt\r\n<\/code><\/pre>\n<p>\u63d0\u53d6\u591a\u4e2a\u5b57\u6bb5\uff0c\u5982\u7528\u6237\u540d\u548c\u7528\u6237\u76ee\u5f55\uff1a<\/p>\n<pre><code class=\"language-bash\">grep \"\/bin\/bash\" \/etc\/passwd | cut -d':' -f1,6\r\n<\/code><\/pre>\n<hr \/>\n<h3>2. \u8303\u56f4\u63d0\u53d6\u4e0e\u53cd\u9009\u5b57\u6bb5<\/h3>\n<p>\u63d0\u53d6\u7b2c1-4\u5b57\u6bb5\u53ca\u7b2c6\u30017\u5b57\u6bb5\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -d':' -f1-4,6,7 \/etc\/passwd\r\n<\/code><\/pre>\n<p>\u53cd\u9009\u8f93\u51fa\uff08\u9664\u7b2c\u4e8c\u5217\u5916\uff09\uff1a<\/p>\n<pre><code class=\"language-bash\">grep \"\/bin\/bash\" \/etc\/passwd | cut -d':' --complement -f2\r\n<\/code><\/pre>\n<hr \/>\n<h3>3. \u81ea\u5b9a\u4e49\u8f93\u51fa\u5206\u9694\u7b26<\/h3>\n<p>\u4fee\u6539\u9ed8\u8ba4\u8f93\u51fa\u683c\u5f0f\uff0c\u5982\u7528\u7a7a\u683c\u66ff\u4ee3\u5192\u53f7\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -d: -f1,7 --output-delimiter=' ' \/etc\/passwd\r\n<\/code><\/pre>\n<p>\u9010\u884c\u8f93\u51fa\u5b57\u6bb5\uff0c\u53ef\u4f7f\u7528\u6362\u884c\u7b26\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -d':' -f1,6,7 --output-delimiter=$'\\n' \/etc\/passwd\r\n<\/code><\/pre>\n<hr \/>\n<h3>4. \u6309\u5b57\u7b26\u6216\u5b57\u8282\u63d0\u53d6<\/h3>\n<p>\u6309\u5b57\u7b26\u83b7\u53d6\u6bcf\u884c\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -c1 content.txt\r\n<\/code><\/pre>\n<p>\u6309\u5b57\u8282\u63d0\u53d6\u5185\u5bb9\uff08\u4e0e\u5b57\u7b26\u63d0\u53d6\u7c7b\u4f3c\uff0c\u4f46\u5bf9\u591a\u5b57\u8282\u5b57\u7b26\u9700\u8c28\u614e\uff09\uff1a<\/p>\n<pre><code class=\"language-bash\">cut -b1,2,3 content.txt\r\n<\/code><\/pre>\n<hr \/>\n<h3>5. \u7ba1\u9053\u7ed3\u5408\u4f7f\u7528\u7684\u6280\u5de7<\/h3>\n<p>\u7ed3\u5408 <code>ps<\/code> \u547d\u4ee4\u63d0\u53d6\u8fd0\u884c\u7528\u6237\u4e0e\u8fdb\u7a0b\u4fe1\u606f\uff1a<\/p>\n<pre><code class=\"language-bash\">ps -L u n | tr -s \" \" | cut -d \" \" -f2,3,14-\r\n<\/code><\/pre>\n<p>\u63d0\u53d6\u5185\u5b58\u72b6\u6001\u5e76\u4fdd\u5b58\uff1a<\/p>\n<pre><code class=\"language-bash\">free -m | tr -s ' ' | sed '\/^Mem\/!d' | cut -d\" \" -f2-4 &gt;&gt; memory.txt\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u4e09\u3001cut \u547d\u4ee4\u7684\u5c40\u9650\u6027<\/h2>\n<p>\u5c3d\u7ba1 <code>cut<\/code> \u5341\u5206\u5b9e\u7528\uff0c\u4f46\u5b83\u5b58\u5728\u4e00\u4e9b\u9650\u5236\uff0c\u4f8b\u5982\u4e0d\u652f\u6301\u591a\u4e2a\u5b57\u7b26\u4f5c\u4e3a\u5b57\u6bb5\u5206\u9694\u7b26\u3002\u5982\u679c\u9700\u8981\u66f4\u590d\u6742\u7684\u5206\u5272\u903b\u8f91\uff0c\u53ef\u4ee5\u501f\u52a9 <code>awk<\/code> \u6216 <code>sed<\/code> \u7b49\u5de5\u5177\u3002\u7ed3\u5408 <code>tr<\/code> \u547d\u4ee4\u7edf\u4e00\u7a7a\u683c\uff0c\u6709\u52a9\u4e8e\u4fdd\u8bc1\u5b57\u6bb5\u63d0\u53d6\u51c6\u786e\u3002<\/p>\n<hr \/>\n<h2>\u56db\u3001\u9ad8\u6548 Linux \u8fd0\u7ef4\u79bb\u4e0d\u5f00\u9ad8\u6027\u80fd\u7f8e\u56fd\u670d\u52a1\u5668<\/h2>\n<p>\u5728\u8fdb\u884c\u5927\u91cf\u6587\u672c\u6570\u636e\u5904\u7406\u3001\u65e5\u5fd7\u5206\u6790\u6216\u6784\u5efa\u81ea\u52a8\u5316\u811a\u672c\u5e73\u53f0\u65f6\uff0c\u5f3a\u5927\u7684\u670d\u52a1\u5668\u652f\u6301\u5fc5\u4e0d\u53ef\u5c11\u3002\u63a8\u8350\u9009\u62e9\u7a33\u5b9a\u3001\u5e26\u5bbd\u5145\u8db3\u7684 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong>\uff0c\u6ee1\u8db3\u9ad8\u5e76\u53d1\u3001\u591a\u4efb\u52a1\u5904\u7406\u7684\u6027\u80fd\u9700\u6c42\u3002<\/p>\n<p>\u65e0\u8bba\u662f\u90e8\u7f72\u4f01\u4e1a\u7ea7\u5e94\u7528\u3001\u642d\u5efa CI\/CD \u5e73\u53f0\uff0c\u8fd8\u662f\u5f00\u5c55\u8fdc\u7a0b\u8fd0\u7ef4\u4efb\u52a1\uff0c\u7f8e\u56fd\u4e91\u670d\u52a1\u5668\u51ed\u501f\u5730\u7406\u4f18\u52bf\u4e0e\u9ad8\u8d28\u91cf\u7f51\u7edc\u73af\u5883\uff0c\u80fd\u6709\u6548\u4fdd\u969c\u670d\u52a1\u7a33\u5b9a\u6027\u4e0e\u5168\u7403\u8bbf\u95ee\u901f\u5ea6\u3002<\/p>\n<hr \/>\n<h2>\u7ed3\u8bed<\/h2>\n<p>\u638c\u63e1 <code>cut<\/code> \u547d\u4ee4\u4e0d\u4ec5\u63d0\u5347\u6587\u672c\u5904\u7406\u6548\u7387\uff0c\u4e5f\u662f\u7cfb\u7edf\u7ba1\u7406\u5458\u5fc5\u5907\u7684\u57fa\u7840\u6280\u80fd\u4e4b\u4e00\u3002\u901a\u8fc7\u5408\u7406\u7ec4\u5408\u547d\u4ee4\u9009\u9879\u4e0e\u7ba1\u9053\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u65e5\u5fd7\u3001\u914d\u7f6e\u6587\u4ef6\u3001\u7cfb\u7edf\u8f93\u51fa\u7b49\u591a\u79cd\u6570\u636e\u7684\u7cbe\u51c6\u63d0\u53d6\u3002\u914d\u5408\u4f7f\u7528\u9ad8\u53ef\u9760\u6027\u7684 <a href=\"https:\/\/fwq.ai\/\"><strong>\u7f8e\u56fdVPS<\/strong><\/a>\uff0c\u66f4\u80fd\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u53d1\u6325\u5176\u6700\u5927\u6548\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u5728\u65e5\u5e38\u7684 Linux \u6216 Unix \u7cfb\u7edf\u7ba1\u7406\u4e2d\uff0c\u6587\u672c\u5904\u7406\u5de5\u5177\u626e\u6f14\u7740\u4e3e\u8db3\u8f7b\u91cd\u7684\u89d2\u8272\u3002\u5c24\u5176\u662f\u5f53\u6211\u4eec\u9700\u8981\u4ece\u7cfb\u7edf\u6587\u4ef6\u4e2d\u63d0\u53d6\u6307\u5b9a\u5b57\u6bb5\u4fe1\u606f\u65f6\uff0ccut \u547d\u4ee4\u4fbf\u6210\u4e3a\u4e00\u6b3e\u9ad8\u6548\u800c\u5b9e\u7528\u7684\u5229\u5668\u3002\u672c\u6587\u5c06\u6df1\u5165\u8bb2\u89e3 cut \u547d\u4ee4\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u914d\u5408\u5b9e\u9645\u6848\u4f8b\u5e2e\u52a9\u5927\u5bb6\u638c\u63e1\u5176\u5f3a\u5927\u529f\u80fd\u3002\u540c\u65f6\uff0c\u4e3a\u9ad8\u6027\u80fd\u7cfb\u7edf\u8fd0\u7ef4\u63a8\u8350\u9002\u914d\u6027\u4f18\u5f02\u7684 \u7f8e\u56fd\u670d\u52a1\u5668\uff0c\u52a9\u529b\u9ad8\u8d1f\u8f7d\u573a\u666f\u4e0b\u7684\u5904\u7406\u9700\u6c42\u3002 \u4e00\u3001cut \u547d\u4ee4\u7b80\u4ecb\u4e0e\u57fa\u672c\u8bed\u6cd5 cut \u547d\u4ee4\u4e3b\u8981\u7528\u4e8e\u4ece\u6587\u672c\u6587\u4ef6\u4e2d\u63d0\u53d6\u6307\u5b9a\u5217\uff08\u5b57\u6bb5\u3001\u5b57\u7b26\u6216\u5b57\u8282\uff09\u7684\u5185\u5bb9\uff0c\u901a\u5e38\u4e0e | \u7ba1\u9053\u7b26\u7ed3\u5408\u4f7f\u7528\uff0c\u5b9e\u73b0\u5bf9\u5927\u89c4\u6a21\u6570\u636e\u7684\u9ad8\u6548\u622a\u53d6\u4e0e\u5904\u7406\u3002\u5176\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a cut OPTION&#8230; [FILE]&#8230; \u5e38\u7528\u9009\u9879\u5305\u62ec\uff1a -f\uff1a\u63d0\u53d6\u6307\u5b9a\u7684\u5b57\u6bb5\uff08\u9ed8\u8ba4\u4ee5 Tab \u4e3a\u5206\u9694\u7b26\uff09 -d\uff1a\u8bbe\u7f6e\u5b57\u6bb5\u5206\u9694\u7b26 -b\uff1a\u6309\u5b57\u8282\u63d0\u53d6 -c\uff1a\u6309\u5b57\u7b26\u63d0\u53d6 &#8211;complement\uff1a\u8f93\u51fa\u9664\u6307\u5b9a\u5b57\u6bb5\u4ee5\u5916\u7684\u5185\u5bb9 &#8211;output-delimiter\uff1a\u81ea\u5b9a\u4e49\u8f93\u51fa\u5b57\u6bb5\u7684\u5206\u9694\u7b26 &#8211;only-delimited\uff1a\u5ffd\u7565\u4e0d\u5305\u542b\u5206\u9694\u7b26\u7684\u884c \u4e8c\u3001\u5b9e\u6218\u6848\u4f8b\u8be6\u89e3 1. \u4f7f\u7528\u5206\u9694\u7b26\u63d0\u53d6\u5b57\u6bb5 \u4ee5\u4e0b\u547d\u4ee4\u4ece \/etc\/passwd \u4e2d\u63d0\u53d6\u7b2c\u4e00\u5b57\u6bb5\uff08\u7528\u6237\u540d\uff09\uff1a cut -d&#8217;:&#8217; -f1 \/etc\/passwd \u4ece\u5305\u542b\u7a7a\u683c\u7684\u6587\u672c\u4e2d\u63d0\u53d6\u7b2c\u4e00\u5217\uff1a cut -d&#8221; &#8221; -f1 content.txt \u63d0\u53d6\u591a\u4e2a\u5b57\u6bb5\uff0c\u5982\u7528\u6237\u540d\u548c\u7528\u6237\u76ee\u5f55\uff1a grep &#8220;\/bin\/bash&#8221; \/etc\/passwd | cut -d&#8217;:&#8217; -f1,6 2. \u8303\u56f4\u63d0\u53d6\u4e0e\u53cd\u9009\u5b57\u6bb5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-68668","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/68668","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=68668"}],"version-history":[{"count":1,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/68668\/revisions"}],"predecessor-version":[{"id":68670,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/68668\/revisions\/68670"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=68668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=68668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=68668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}