{"id":3111,"date":"2018-02-04T08:42:00","date_gmt":"2018-02-04T00:42:00","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=3111"},"modified":"2018-02-04T08:42:00","modified_gmt":"2018-02-04T00:42:00","slug":"linux%e4%b8%8bcat%e3%80%81%e7%ae%a1%e9%81%93%e3%80%81%e9%87%8d%e5%ae%9a%e5%90%91%e5%91%bd%e4%bb%a4%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux%e4%b8%8bcat%e3%80%81%e7%ae%a1%e9%81%93%e3%80%81%e9%87%8d%e5%ae%9a%e5%90%91%e5%91%bd%e4%bb%a4%e8%af%a6%e8%a7%a3\/","title":{"rendered":"linux\u4e0bcat\u3001\u7ba1\u9053|\u3001\u91cd\u5b9a\u5411\u547d\u4ee4\u8be6\u89e3"},"content":{"rendered":"<p><strong>\u4e00\uff1acat\u4e3b\u8981\u6709\u4e09\u5927\u529f\u80fd\uff1a<\/strong><br \/>\n1.\u67e5\u770b\u6574\u4e2a\u6587\u4ef6\u3002$ cat filename<br \/>\n2.\u4ece\u952e\u76d8\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u3002$ cat &gt; filename\u00a0 \uff0c\u6ce8\u610f&gt;&gt;\u662f\u8ffd\u52a0<br \/>\n\u53ea\u80fd\u521b\u5efa\u65b0\u6587\u4ef6,\u4e0d\u80fd\u7f16\u8f91\u5df2\u6709\u6587\u4ef6.<br \/>\n3.\u5c06\u51e0\u4e2a\u6587\u4ef6\u5408\u5e76\u4e3a\u4e00\u4e2a\u6587\u4ef6\uff1a $cat file1 file2 &gt; file<\/p>\n<p>\u53c2\u6570\uff1a<br \/>\n-n \u6216 &#8211;number \u7531 1 \u5f00\u59cb\u5bf9\u6240\u6709\u8f93\u51fa\u7684\u884c\u6570\u7f16\u53f7<br \/>\n-b \u6216 &#8211;number-nonblank \u548c -n \u76f8\u4f3c\uff0c\u53ea\u4e0d\u8fc7\u5bf9\u4e8e\u7a7a\u767d\u884c\u4e0d\u7f16\u53f7<br \/>\n-s \u6216 &#8211;squeeze-blank \u5f53\u9047\u5230\u6709\u8fde\u7eed\u4e24\u884c\u4ee5\u4e0a\u7684\u7a7a\u767d\u884c\uff0c\u5c31\u4ee3\u6362\u4e3a\u4e00\u884c\u7684\u7a7a\u767d\u884c<br \/>\n-v \u6216 &#8211;show-nonprinting<br \/>\n\u4f8b\uff1a<br \/>\n\u628a textfile1 \u7684\u6863\u6848\u5185\u5bb9\u52a0\u4e0a\u884c\u53f7\u540e\u8f93\u5165 textfile2 \u8fd9\u4e2a\u6863\u6848\u91cc<br \/>\ncat -n textfile1 &gt; textfile2<br \/>\n\u628a textfile1 \u548c textfile2 \u7684\u6863\u6848\u5185\u5bb9\u52a0\u4e0a\u884c\u53f7\uff08\u7a7a\u767d\u884c\u4e0d\u52a0\uff09\u4e4b\u540e\u5c06\u5185\u5bb9\u9644\u52a0\u5230 textfile3 \u91cc\u3002<br \/>\ncat -b textfile1 textfile2 &gt;&gt; textfile3<\/p>\n<p>&nbsp;<\/p>\n<p>\u628atest.txt\u6587\u4ef6\u6254\u8fdb\u5783\u573e\u7bb1\uff0c\u8d4b\u7a7a\u503ctest.txt<br \/>\ncat \/dev\/null &gt; 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