{"id":1669,"date":"2018-01-08T15:37:24","date_gmt":"2018-01-08T07:37:24","guid":{"rendered":"http:\/\/nick.txtcc.com\/?p=1669"},"modified":"2018-01-08T15:37:24","modified_gmt":"2018-01-08T07:37:24","slug":"linux-sort-%e5%91%bd%e4%bb%a4%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/nick.txtcc.com\/index.php\/linux\/1669","title":{"rendered":"linux sort \u547d\u4ee4\u8be6\u89e3"},"content":{"rendered":"<p>sort\u662f\u5728Linux\u91cc\u975e\u5e38\u5e38\u7528\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c\u7ba1\u6392\u5e8f\u7684\uff0c\u96c6\u4e2d\u7cbe\u529b\uff0c\u4e94\u5206\u949f\u641e\u5b9asort\uff0c\u73b0\u5728\u5f00\u59cb\uff01<\/p>\n<p><strong>1 sort\u7684\u5de5\u4f5c\u539f\u7406<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>sort\u5c06\u6587\u4ef6\u7684\u6bcf\u4e00\u884c\u4f5c\u4e3a\u4e00\u4e2a\u5355\u4f4d\uff0c\u76f8\u4e92\u6bd4\u8f83\uff0c\u6bd4\u8f83\u539f\u5219\u662f\u4ece\u9996\u5b57\u7b26\u5411\u540e\uff0c\u4f9d\u6b21\u6309ASCII\u7801\u503c\u8fdb\u884c\u6bd4\u8f83\uff0c\u6700\u540e\u5c06\u4ed6\u4eec\u6309\u5347\u5e8f\u8f93\u51fa\u3002<\/p>\n<p>[rocrocket@rocrocket programming]$ cat seq.txt\nbanana\napple\npear\norange\n[rocrocket@rocrocket programming]$ sort seq.txt\napple\nbanana\norange\npear<\/p>\n<p><strong>2 sort\u7684-u\u9009\u9879<\/strong><\/p>\n<p>\u5b83\u7684\u4f5c\u7528\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u5728\u8f93\u51fa\u884c\u4e2d\u53bb\u9664\u91cd\u590d\u884c\u3002<\/p>\n<p>[rocrocket@rocrocket programming]$ cat seq.txt\nbanana\napple\npear\norange\npear\n[rocrocket@rocrocket programming]$ sort seq.txt\napple\nbanana\norange\npear\npear\n[rocrocket@rocrocket programming]$ sort -u seq.txt\napple\nbanana\norange\npear<\/p>\n<p>pear\u7531\u4e8e\u91cd\u590d\u88ab-u\u9009\u9879\u65e0\u60c5\u7684\u5220\u9664\u4e86\u3002<\/p>\n<p><strong>3 sort\u7684-r\u9009\u9879<\/strong><\/p>\n<p>sort\u9ed8\u8ba4\u7684\u6392\u5e8f\u65b9\u5f0f\u662f\u5347\u5e8f\uff0c\u5982\u679c\u60f3\u6539\u6210\u964d\u5e8f\uff0c\u5c31\u52a0\u4e2a-r\u5c31\u641e\u5b9a\u4e86\u3002<\/p>\n<p>[rocrocket@rocrocket programming]$ cat number.txt\n1\n3\n5\n2\n4\n[rocrocket@rocrocket programming]$ sort number.txt\n1\n2\n3\n4\n5\n[rocrocket@rocrocket programming]$ sort -r number.txt\n5\n4\n3\n2\n1<\/p>\n<p><strong>4 sort\u7684-o\u9009\u9879<\/strong><\/p>\n<p>\u7531\u4e8esort\u9ed8\u8ba4\u662f\u628a\u7ed3\u679c\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u6240\u4ee5\u9700\u8981\u7528\u91cd\u5b9a\u5411\u624d\u80fd\u5c06\u7ed3\u679c\u5199\u5165\u6587\u4ef6\uff0c\u5f62\u5982sort filename > newfile\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u4f60\u60f3\u628a\u6392\u5e8f\u7ed3\u679c\u8f93\u51fa\u5230\u539f\u6587\u4ef6\u4e2d\uff0c\u7528\u91cd\u5b9a\u5411\u53ef\u5c31\u4e0d\u884c\u4e86\u3002<\/p>\n<p>[rocrocket@rocrocket programming]$ sort -r number.txt > number.txt\n[rocrocket@rocrocket programming]$ cat number.txt\n[rocrocket@rocrocket programming]$\n\u770b\uff0c\u7adf\u7136\u5c06number\u6e05\u7a7a\u4e86\u3002<\/p>\n<p>\u5c31\u5728\u8fd9\u4e2a\u65f6\u5019\uff0c-o\u9009\u9879\u51fa\u73b0\u4e86\uff0c\u5b83\u6210\u529f\u7684\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u8ba9\u4f60\u653e\u5fc3\u7684\u5c06\u7ed3\u679c\u5199\u5165\u539f\u6587\u4ef6\u3002\u8fd9\u6216\u8bb8\u4e5f\u662f-o\u6bd4\u91cd\u5b9a\u5411\u7684\u552f\u4e00\u4f18\u52bf\u6240\u5728\u3002<\/p>\n<p>[rocrocket@rocrocket programming]$ cat number.txt\n1\n3\n5\n2\n4\n[rocrocket@rocrocket programming]$ sort -r number.txt -o number.txt\n[rocrocket@rocrocket programming]$ cat number.txt\n5\n4\n3\n2\n1<\/p>\n<p><strong>5 sort\u7684-n\u9009\u9879<\/strong><\/p>\n<p>\u4f60\u6709\u6ca1\u6709\u9047\u5230\u8fc710\u6bd42\u5c0f\u7684\u60c5\u51b5\u3002\u6211\u53cd\u6b63\u9047\u5230\u8fc7\u3002\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\u662f\u7531\u4e8e\u6392\u5e8f\u7a0b\u5e8f\u5c06\u8fd9\u4e9b\u6570\u5b57\u6309\u5b57\u7b26\u6765\u6392\u5e8f\u4e86\uff0c\u6392\u5e8f\u7a0b\u5e8f\u4f1a\u5148\u6bd4\u8f831\u548c2\uff0c\u663e\u71361\u5c0f\uff0c\u6240\u4ee5\u5c31\u5c0610\u653e\u57282\u524d\u9762\u55bd\u3002\u8fd9\u4e5f\u662fsort\u7684\u4e00\u8d2f\u4f5c\u98ce\u3002<\/p>\n<p>\u6211\u4eec\u5982\u679c\u60f3\u6539\u53d8\u8fd9\u79cd\u73b0\u72b6\uff0c\u5c31\u8981\u4f7f\u7528-n\u9009\u9879\uff0c\u6765\u544a\u8bc9sort\uff0c\u201c\u8981\u4ee5\u6570\u503c\u6765\u6392\u5e8f\u201d\uff01<\/p>\n<p>[rocrocket@rocrocket programming]$ cat number.txt\n1\n10\n19\n11\n2\n5\n[rocrocket@rocrocket programming]$ sort number.txt\n1\n10\n11\n19\n2\n5\n[rocrocket@rocrocket programming]$ sort -n number.txt\n1\n2\n5\n10\n11\n19<\/p>\n<p><strong>6 sort\u7684-t\u9009\u9879\u548c-k\u9009\u9879<\/strong><\/p>\n<p>\u5982\u679c\u6709\u4e00\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\u662f\u8fd9\u6837\uff1a<\/p>\n<p>[rocrocket@rocrocket programming]$ cat facebook.txt\nbanana:30:5.5\napple:10:2.5\npear:90:2.3\norange:20:3.4<\/p>\n<p>\u8fd9\u4e2a\u6587\u4ef6\u6709\u4e09\u5217\uff0c\u5217\u4e0e\u5217\u4e4b\u95f4\u7528\u5192\u53f7\u9694\u5f00\u4e86\uff0c\u7b2c\u4e00\u5217\u8868\u793a\u6c34\u679c\u7c7b\u578b\uff0c\u7b2c\u4e8c\u5217\u8868\u793a\u6c34\u679c\u6570\u91cf\uff0c\u7b2c\u4e09\u5217\u8868\u793a\u6c34\u679c\u4ef7\u683c\u3002<\/p>\n<p>\u90a3\u4e48\u6211\u60f3\u4ee5\u6c34\u679c\u6570\u91cf\u6765\u6392\u5e8f\uff0c\u4e5f\u5c31\u662f\u4ee5\u7b2c\u4e8c\u5217\u6765\u6392\u5e8f\uff0c\u5982\u4f55\u5229\u7528sort\u5b9e\u73b0\uff1f<\/p>\n<p>\u5e78\u597d\uff0csort\u63d0\u4f9b\u4e86-t\u9009\u9879\uff0c\u540e\u9762\u53ef\u4ee5\u8bbe\u5b9a\u95f4\u9694\u7b26\u3002\uff08\u662f\u4e0d\u662f\u60f3\u8d77\u4e86cut\u548cpaste\u7684-d\u9009\u9879\uff0c\u5171\u9e23\uff5e\uff5e\uff09<\/p>\n<p>\u6307\u5b9a\u4e86\u95f4\u9694\u7b26\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u7528-k\u6765\u6307\u5b9a\u5217\u6570\u4e86\u3002<\/p>\n<p>[rocrocket@rocrocket programming]$ sort -n -k 2 -t : facebook.txt\napple:10:2.5\norange:20:3.4\nbanana:30:5.5\npear:90:2.3<\/p>\n<p>\u6211\u4eec\u4f7f\u7528\u5192\u53f7\u4f5c\u4e3a\u95f4\u9694\u7b26\uff0c\u5e76\u9488\u5bf9\u7b2c\u4e8c\u5217\u6765\u8fdb\u884c\u6570\u503c\u5347\u5e8f\u6392\u5e8f\uff0c\u7ed3\u679c\u5f88\u4ee4\u4eba\u6ee1\u610f\u3002<\/p>\n<p><strong>7 \u5176\u4ed6\u7684sort\u5e38\u7528\u9009\u9879<\/strong><\/p>\n<p>-f\u4f1a\u5c06\u5c0f\u5199\u5b57\u6bcd\u90fd\u8f6c\u6362\u4e3a\u5927\u5199\u5b57\u6bcd\u6765\u8fdb\u884c\u6bd4\u8f83\uff0c\u4ea6\u5373\u5ffd\u7565\u5927\u5c0f\u5199<\/p>\n<p>-c\u4f1a\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u6392\u597d\u5e8f\uff0c\u5982\u679c\u4e71\u5e8f\uff0c\u5219\u8f93\u51fa\u7b2c\u4e00\u4e2a\u4e71\u5e8f\u7684\u884c\u7684\u76f8\u5173\u4fe1\u606f\uff0c\u6700\u540e\u8fd4\u56de1<\/p>\n<p>-C\u4f1a\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u6392\u597d\u5e8f\uff0c\u5982\u679c\u4e71\u5e8f\uff0c\u4e0d\u8f93\u51fa\u5185\u5bb9\uff0c\u4ec5\u8fd4\u56de1<\/p>\n<p>-M\u4f1a\u4ee5\u6708\u4efd\u6765\u6392\u5e8f\uff0c\u6bd4\u5982JAN\u5c0f\u4e8eFEB\u7b49\u7b49<\/p>\n<p>-b\u4f1a\u5ffd\u7565\u6bcf\u4e00\u884c\u524d\u9762\u7684\u6240\u6709\u7a7a\u767d\u90e8\u5206\uff0c\u4ece\u7b2c\u4e00\u4e2a\u53ef\u89c1\u5b57\u7b26\u5f00\u59cb\u6bd4\u8f83\u3002<\/p>\n<p>\u6709\u65f6\u5019\u5b66\u4e60\u811a\u672c\uff0c\u4f60\u4f1a\u53d1\u73b0sort\u547d\u4ee4\u540e\u9762\u8ddf\u4e86\u4e00\u5806\u7c7b\u4f3c-k1,2\uff0c\u6216\u8005-k1.2 -k3.4\u7684\u4e1c\u4e1c\uff0c\u6709\u4e9b\u532a\u5937\u6240\u601d\u3002\u4eca\u5929\uff0c\u6211\u4eec\u5c31\u6765\u641e\u5b9a\u5b83\u2014-k\u9009\u9879\uff01<\/p>\n<p><strong>1 \u51c6\u5907\u7d20\u6750<\/strong><\/p>\n<p>$ cat facebook.txt\ngoogle 110 5000\nbaidu 100 5000\nguge 50 3000\nsohu 100 4500<\/p>\n<p>&nbsp;<\/p>\n<p>\u7b2c\u4e00\u4e2a\u57df\u662f\u516c\u53f8\u540d\u79f0\uff0c\u7b2c\u4e8c\u4e2a\u57df\u662f\u516c\u53f8\u4eba\u6570\uff0c\u7b2c\u4e09\u4e2a\u57df\u662f\u5458\u5de5\u5e73\u5747\u5de5\u8d44\u3002\uff08\u9664\u4e86\u516c\u53f8\u540d\u79f0\uff0c\u5176\u4ed6\u7684\u522b\u4fe1\uff0c\u90fd\u778e\u5199\u7684^_^\uff09<\/p>\n<p><strong>2 \u6211\u60f3\u8ba9\u8fd9\u4e2a\u6587\u4ef6\u6309\u516c\u53f8\u7684\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f\uff0c\u4e5f\u5c31\u662f\u6309\u7b2c\u4e00\u4e2a\u57df\u8fdb\u884c\u6392\u5e8f\uff1a\uff08\u8fd9\u4e2afacebook.txt\u6587\u4ef6\u6709\u4e09\u4e2a\u57df\uff09<\/strong><\/p>\n<p>$ sort -t \u2018 \u2018 -k 1 facebook.txt\nbaidu 100 5000\ngoogle 110 5000\nguge 50 3000\nsohu 100 4500<\/p>\n<p>\u770b\u5230\u4e86\u5427\uff0c\u5c31\u76f4\u63a5\u7528-k 1\u8bbe\u5b9a\u5c31\u53ef\u4ee5\u4e86\u3002\uff08\u5176\u5b9e\u6b64\u5904\u5e76\u4e0d\u4e25\u683c\uff0c\u7a0d\u540e\u4f60\u5c31\u4f1a\u77e5\u9053\uff09<\/p>\n<p><strong>3 \u6211\u60f3\u8ba9facebook.txt\u6309\u7167\u516c\u53f8\u4eba\u6570\u6392\u5e8f<\/strong><\/p>\n<p>$ sort -n -t \u2018 \u2018 -k 2 facebook.txt\nguge 50 3000\nbaidu 100 5000\nsohu 100 4500\ngoogle 110 5000<\/p>\n<p>\u4e0d\u7528\u89e3\u91ca\uff0c\u6211\u76f8\u4fe1\u4f60\u80fd\u61c2\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u6b64\u5904\u51fa\u73b0\u4e86\u95ee\u9898\uff0c\u90a3\u5c31\u662fbaidu\u548csohu\u7684\u516c\u53f8\u4eba\u6570\u76f8\u540c\uff0c\u90fd\u662f100\u4eba\uff0c\u8fd9\u4e2a\u65f6\u5019\u600e\u4e48\u529e\u5462\uff1f\u6309\u7167\u9ed8\u8ba4\u89c4\u77e9\uff0c\u662f\u4ece\u7b2c\u4e00\u4e2a\u57df\u5f00\u59cb\u8fdb\u884c\u5347\u5e8f\u6392\u5e8f\uff0c\u56e0\u6b64baidu\u6392\u5728\u4e86sohu\u524d\u9762\u3002<\/p>\n<p><strong>4\u00a0 \u6211\u60f3\u8ba9facebook.txt\u6309\u7167\u516c\u53f8\u4eba\u6570\u6392\u5e8f \uff0c\u4eba\u6570\u76f8\u540c\u7684\u6309\u7167\u5458\u5de5\u5e73\u5747\u5de5\u8d44\u5347\u5e8f\u6392\u5e8f\uff1a<\/strong><\/p>\n<p>$ sort -n -t \u2018 \u2018 -k 2 -k 3 facebook.txt\nguge 50 3000\nsohu 100 4500\nbaidu 100 5000\ngoogle 110 5000<\/p>\n<p>\u770b\uff0c\u6211\u4eec\u52a0\u4e86\u4e00\u4e2a-k2 -k3\u5c31\u89e3\u51b3\u4e86\u95ee\u9898\u3002\u5bf9\u6ef4\uff0csort\u652f\u6301\u8fd9\u79cd\u8bbe\u5b9a\uff0c\u5c31\u662f\u8bf4\u8bbe\u5b9a\u57df\u6392\u5e8f\u7684\u4f18\u5148\u7ea7\uff0c\u5148\u4ee5\u7b2c2\u4e2a\u57df\u8fdb\u884c\u6392\u5e8f\uff0c\u5982\u679c\u76f8\u540c\uff0c\u518d\u4ee5\u7b2c3\u4e2a\u57df\u8fdb\u884c\u6392\u5e8f\u3002\uff08\u5982\u679c\u4f60\u613f\u610f\uff0c\u53ef\u4ee5\u4e00\u76f4\u8fd9\u4e48\u5199\u4e0b\u53bb\uff0c\u8bbe\u5b9a\u5f88\u591a\u4e2a\u6392\u5e8f\u4f18\u5148\u7ea7\uff09<\/p>\n<p><strong>5 \u6211\u60f3\u8ba9facebook.txt\u6309\u7167\u5458\u5de5\u5de5\u8d44\u964d\u5e8f\u6392\u5e8f\uff0c\u5982\u679c\u5458\u5de5\u4eba\u6570\u76f8\u540c\u7684\uff0c\u5219\u6309\u7167\u516c\u53f8\u4eba\u6570\u5347\u5e8f\u6392\u5e8f\uff1a\uff08\u8fd9\u4e2a\u6709\u70b9\u96be\u5ea6\u55bd\uff09<\/strong><\/p>\n<p>$ sort -n -t \u2018 \u2018 -k 3r -k 2 facebook.txt\nbaidu 100 5000\ngoogle 110 5000\nsohu 100 4500\nguge 50 3000<\/p>\n<p>\u6b64\u5904\u6709\u4f7f\u7528\u4e86\u4e00\u4e9b\u5c0f\u6280\u5de7\uff0c\u4f60\u4ed4\u7ec6\u770b\u770b\uff0c\u5728-k 3\u540e\u9762\u5077\u5077\u52a0\u4e0a\u4e86\u4e00\u4e2a\u5c0f\u5199\u5b57\u6bcdr\u3002\u4f60\u60f3\u60f3\uff0c\u518d\u7ed3\u5408\u6211\u4eec<a href=\"http:\/\/roclinux.cn\/?p=1350\" target=\"_blank\">\u4e0a\u4e00\u7bc7\u6587\u7ae0<\/a>\uff0c\u80fd\u5f97\u5230\u7b54\u6848\u4e48\uff1f\u63ed\u6653\uff1ar\u548c-r\u9009\u9879\u7684\u4f5c\u7528\u662f\u4e00\u6837\u7684\uff0c\u5c31\u662f\u8868\u793a\u9006\u5e8f\u3002\u56e0\u4e3asort\u9ed8\u8ba4\u662f\u6309\u7167\u5347\u5e8f\u6392\u5e8f\u7684\uff0c\u6240\u4ee5\u6b64\u5904\u9700\u8981\u52a0\u4e0ar\u8868\u793a\u7b2c\u4e09\u4e2a\u57df\uff08\u5458\u5de5\u5e73\u5747\u5de5\u8d44\uff09\u662f\u6309\u7167\u964d\u5e8f\u6392\u5e8f\u3002\u6b64\u5904\u4f60\u8fd8\u53ef\u4ee5\u52a0\u4e0an\uff0c\u5c31\u8868\u793a\u5bf9\u8fd9\u4e2a\u57df\u8fdb\u884c\u6392\u5e8f\u65f6\uff0c\u8981\u6309\u7167\u6570\u503c\u5927\u5c0f\u8fdb\u884c\u6392\u5e8f\uff0c\u4e3e\u4e2a\u4f8b\u5b50\u5427\uff1a<\/p>\n<p>$ sort -t \u2018 \u2018 -k 3nr -k 2n facebook.txt\nbaidu 100 5000\ngoogle 110 5000\nsohu 100 4500\nguge 50 3000<\/p>\n<p>\u770b\uff0c\u6211\u4eec\u53bb\u6389\u4e86\u6700\u524d\u9762\u7684-n\u9009\u9879\uff0c\u800c\u662f\u5c06\u5b83\u52a0\u5165\u5230\u4e86\u6bcf\u4e00\u4e2a-k\u9009\u9879\u4e2d\u4e86\u3002<\/p>\n<p><strong>6 -k\u9009\u9879\u7684\u5177\u4f53\u8bed\u6cd5\u683c\u5f0f<\/strong><\/p>\n<p>\u8981\u7ee7\u7eed\u5f80\u4e0b\u6df1\u5165\u7684\u8bdd\uff0c\u5c31\u4e0d\u5f97\u4e0d\u6765\u70b9\u7406\u8bba\u77e5\u8bc6\u3002\u4f60\u9700\u8981\u4e86\u89e3-k\u9009\u9879\u7684\u8bed\u6cd5\u683c\u5f0f\uff0c\u5982\u4e0b\uff1a<\/p>\n<p>[ FStart [ .CStart ] ] [ Modifier ] [ , [ FEnd [ .CEnd ] ][ Modifier ] ]<\/p>\n<p>\u8fd9\u4e2a\u8bed\u6cd5\u683c\u5f0f\u53ef\u4ee5\u88ab\u5176\u4e2d\u7684\u9017\u53f7\uff08\u201c\uff0c\u201d\uff09\u5206\u4e3a\u4e24\u5927\u90e8\u5206\uff0cStart\u90e8\u5206\u548cEnd\u90e8\u5206\u3002<\/p>\n<p>\u5148\u7ed9\u4f60\u704c\u8f93\u4e00\u4e2a\u601d\u60f3\uff0c\u90a3\u5c31\u662f\u201c\u5982\u679c\u4e0d\u8bbe\u5b9aEnd\u90e8\u5206\uff0c\u90a3\u4e48\u5c31\u8ba4\u4e3aEnd\u88ab\u8bbe\u5b9a\u4e3a\u884c\u5c3e\u201d\u3002\u8fd9\u4e2a\u6982\u5ff5\u5f88\u91cd\u8981\u7684\uff0c\u4f46\u5f80\u5f80\u4f60\u4e0d\u4f1a\u91cd\u89c6\u5b83\u3002<\/p>\n<p>Start\u90e8\u5206\u4e5f\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff0c\u5176\u4e2d\u7684Modifier\u90e8\u5206\u5c31\u662f\u6211\u4eec\u4e4b\u524d\u8bf4\u8fc7\u7684\u7c7b\u4f3cn\u548cr\u7684\u9009\u9879\u90e8\u5206\u3002\u6211\u4eec\u91cd\u70b9\u8bf4\u8bf4Start\u90e8\u5206\u7684FStart\u548cC.Start\u3002<\/p>\n<p>C.Start\u4e5f\u662f\u53ef\u4ee5\u7701\u7565\u7684\uff0c\u7701\u7565\u7684\u8bdd\u5c31\u8868\u793a\u4ece\u672c\u57df\u7684\u5f00\u5934\u90e8\u5206\u5f00\u59cb\u3002\u4e4b\u524d\u4f8b\u5b50\u4e2d\u7684-k 2\u548c-k 3\u5c31\u662f\u7701\u7565\u4e86C.Start\u7684\u4f8b\u5b50\u55bd\u3002<\/p>\n<p>FStart.CStart\uff0c\u5176\u4e2dFStart\u5c31\u662f\u8868\u793a\u4f7f\u7528\u7684\u57df\uff0c\u800cCStart\u5219\u8868\u793a\u5728FStart\u57df\u4e2d\u4ece\u7b2c\u51e0\u4e2a\u5b57\u7b26\u5f00\u59cb\u7b97\u201c\u6392\u5e8f\u9996\u5b57\u7b26\u201d\u3002<\/p>\n<p>\u540c\u7406\uff0c\u5728End\u90e8\u5206\u4e2d\uff0c\u4f60\u53ef\u4ee5\u8bbe\u5b9aFEnd.CEnd\uff0c\u5982\u679c\u4f60\u7701\u7565.CEnd\uff0c\u5219\u8868\u793a\u7ed3\u5c3e\u5230\u201c\u57df\u5c3e\u201d\uff0c\u5373\u672c\u57df\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u3002\u6216\u8005\uff0c\u5982\u679c\u4f60\u5c06CEnd\u8bbe\u5b9a\u4e3a0(\u96f6)\uff0c\u4e5f\u662f\u8868\u793a\u7ed3\u5c3e\u5230\u201c\u57df\u5c3e\u201d\u3002<\/p>\n<p><strong>7 \u7a81\u53d1\u5947\u60f3\uff0c\u4ece\u516c\u53f8\u82f1\u6587\u540d\u79f0\u7684\u7b2c\u4e8c\u4e2a\u5b57\u6bcd\u5f00\u59cb\u8fdb\u884c\u6392\u5e8f\uff1a<\/strong><\/p>\n<p>$ sort -t \u2018 \u2018 -k 1.2 facebook.txt\nbaidu 100 5000\nsohu 100 4500\ngoogle 110 5000\nguge 50 3000<\/p>\n<p>\u770b\uff0c\u6211\u4eec\u4f7f\u7528\u4e86-k 1.2\uff0c\u8fd9\u5c31\u8868\u793a\u5bf9\u7b2c\u4e00\u4e2a\u57df\u7684\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u5f00\u59cb\u5230\u672c\u57df\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u4e3a\u6b62\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u6392\u5e8f\u3002\u4f60\u4f1a\u53d1\u73b0baidu\u56e0\u4e3a\u7b2c\u4e8c\u4e2a\u5b57\u6bcd\u662fa\u800c\u540d\u5217\u699c\u9996\u3002sohu\u548c google\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u90fd\u662fo\uff0c\u4f46sohu\u7684h\u5728google\u7684o\u524d\u9762\uff0c\u6240\u4ee5\u4e24\u8005\u5206\u522b\u6392\u5728\u7b2c\u4e8c\u548c\u7b2c\u4e09\u3002guge\u53ea\u80fd\u5c48\u5c45\u7b2c\u56db\u4e86\u3002<\/p>\n<p><strong>8 \u53c8\u7a81\u53d1\u5947\u60f3\uff0c\uff0c\u53ea\u9488\u5bf9\u516c\u53f8\u82f1\u6587\u540d\u79f0\u7684\u7b2c\u4e8c\u4e2a\u5b57\u6bcd\u8fdb\u884c\u6392\u5e8f\uff0c\u5982\u679c\u76f8\u540c\u7684\u6309\u7167\u5458\u5de5\u5de5\u8d44\u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\uff1a<\/strong><\/p>\n<p>$ sort -t \u2018 \u2018 -k 1.2,1.2 -k 3,3nr facebook.txt\nbaidu 100 5000\ngoogle 110 5000\nsohu 100 4500\nguge 50 3000<\/p>\n<p>\u7531\u4e8e\u53ea\u5bf9\u7b2c\u4e8c\u4e2a\u5b57\u6bcd\u8fdb\u884c\u6392\u5e8f\uff0c\u6240\u4ee5\u6211\u4eec\u4f7f\u7528\u4e86-k 1.2,1.2\u7684\u8868\u793a\u65b9\u5f0f\uff0c\u8868\u793a\u6211\u4eec\u201c\u53ea\u201d\u5bf9\u7b2c\u4e8c\u4e2a\u5b57\u6bcd\u8fdb\u884c\u6392\u5e8f\u3002\uff08\u5982\u679c\u4f60\u95ee\u201c\u6211\u4f7f\u7528-k 1.2\u600e\u4e48\u4e0d\u884c\uff1f\u201d\uff0c\u5f53\u7136\u4e0d\u884c\uff0c\u56e0\u4e3a\u4f60\u7701\u7565\u4e86End\u90e8\u5206\uff0c\u8fd9\u5c31\u610f\u5473\u7740\u4f60\u5c06\u5bf9\u4ece\u7b2c\u4e8c\u4e2a\u5b57\u6bcd\u8d77\u5230\u672c\u57df\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u4e3a\u6b62\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u6392\u5e8f\uff09\u3002\u5bf9\u4e8e\u5458\u5de5\u5de5\u8d44\u8fdb\u884c\u6392 \u5e8f\uff0c\u6211\u4eec\u4e5f\u4f7f\u7528\u4e86-k 3,3\uff0c\u8fd9\u662f\u6700\u51c6\u786e\u7684\u8868\u8ff0\uff0c\u8868\u793a\u6211\u4eec\u201c\u53ea\u201d\u5bf9\u672c\u57df\u8fdb\u884c\u6392\u5e8f\uff0c\u56e0\u4e3a\u5982\u679c\u4f60\u7701\u7565\u4e86\u540e\u9762\u76843\uff0c\u5c31\u53d8\u6210\u4e86\u6211\u4eec\u201c\u5bf9\u7b2c3\u4e2a\u57df\u5f00\u59cb\u5230\u6700\u540e\u4e00\u4e2a\u57df\u4f4d\u7f6e\u7684\u5185\u5bb9\u8fdb\u884c\u6392\u5e8f\u201d \u4e86\u3002<\/p>\n<p><strong>9 \u5728modifier\u90e8\u5206\u8fd8\u53ef\u4ee5\u7528\u5230\u54ea\u4e9b\u9009\u9879\uff1f<\/strong><\/p>\n<p>\u53ef\u4ee5\u7528\u5230b\u3001d\u3001f\u3001i\u3001n \u6216 r\u3002<\/p>\n<p>\u5176\u4e2dn\u548cr\u4f60\u80af\u5b9a\u5df2\u7ecf\u5f88\u719f\u6089\u4e86\u3002<\/p>\n<p>b\u8868\u793a\u5ffd\u7565\u672c\u57df\u7684\u7b7e\u5230\u7a7a\u767d\u7b26\u53f7\u3002<\/p>\n<p>d\u8868\u793a\u5bf9\u672c\u57df\u6309\u7167\u5b57\u5178\u987a\u5e8f\u6392\u5e8f\uff08\u5373\uff0c\u53ea\u8003\u8651\u7a7a\u767d\u548c\u5b57\u6bcd\uff09\u3002<\/p>\n<p>f\u8868\u793a\u5bf9\u672c\u57df\u5ffd\u7565\u5927\u5c0f\u5199\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n<p>i\u8868\u793a\u5ffd\u7565\u201c\u4e0d\u53ef\u6253\u5370\u5b57\u7b26\u201d\uff0c\u53ea\u9488\u5bf9\u53ef\u6253\u5370\u5b57\u7b26\u8fdb\u884c\u6392\u5e8f\u3002\uff08\u6709\u4e9bASCII\u5c31\u662f\u4e0d\u53ef\u6253\u5370\u5b57\u7b26\uff0c\u6bd4\u5982\\a\u662f\u62a5\u8b66\uff0c\\b\u662f\u9000\u683c\uff0c\\n\u662f\u6362\u884c\uff0c\\r\u662f\u56de\u8f66\u7b49\u7b49\uff09<\/p>\n<p><strong>10 \u601d\u8003\u601d\u8003\u5173\u4e8e-k\u548c-u\u8054\u5408\u4f7f\u7528\u7684\u4f8b\u5b50\uff1a<\/strong><\/p>\n<p>$ cat facebook.txt\ngoogle 110 5000\nbaidu 100 5000\nguge 50 3000\nsohu 100 4500<\/p>\n<p>\u8fd9\u662f\u6700\u539f\u59cb\u7684facebook.txt\u6587\u4ef6\u3002<\/p>\n<p>$ sort -n -k 2 facebook.txt\nguge 50 3000\nbaidu 100 5000\nsohu 100 4500\ngoogle 110 5000<\/p>\n<p>$ sort -n -k 2 -u facebook.txt\nguge 50 3000\nbaidu 100 5000\ngoogle 110 5000<\/p>\n<p>\u5f53\u8bbe\u5b9a\u4ee5\u516c\u53f8\u5458\u5de5\u57df\u8fdb\u884c\u6570\u503c\u6392\u5e8f\uff0c\u7136\u540e\u52a0-u\u540e\uff0csohu\u4e00\u884c\u5c31\u88ab\u5220\u9664\u4e86\uff01\u539f\u6765-u\u53ea\u8bc6\u522b\u7528-k\u8bbe\u5b9a\u7684\u57df\uff0c\u53d1\u73b0\u76f8\u540c\uff0c\u5c31\u5c06\u540e\u7eed\u76f8\u540c\u7684\u884c\u90fd\u5220\u9664\u3002<\/p>\n<p>$ sort\u00a0 -k 1 -u facebook.txt\nbaidu 100 5000\ngoogle 110 5000\nguge 50 3000\nsohu 100 4500<\/p>\n<p>$ sort\u00a0 -k 1.1,1.1 -u facebook.txt\nbaidu 100 5000\ngoogle 110 5000\nsohu 100 4500<\/p>\n<p>\u8fd9\u4e2a\u4f8b\u5b50\u4e5f\u540c\u7406\uff0c\u5f00\u5934\u5b57\u7b26\u662fg\u7684guge\u5c31\u6ca1\u6709\u5e78\u514d\u4e8e\u96be\u3002<\/p>\n<p>$ sort -n -k 2 -k 3 -u facebook.txt\nguge 50 3000\nsohu 100 4500\nbaidu 100 5000\ngoogle 110 5000<\/p>\n<p>\u54a6\uff01\u8fd9\u91cc\u8bbe\u7f6e\u4e86\u4e24\u5c42\u6392\u5e8f\u4f18\u5148\u7ea7\u7684\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528-u\u5c31\u6ca1\u6709\u5220\u9664\u4efb\u4f55\u884c\u3002\u539f\u6765-u\u662f\u4f1a\u6743\u8861\u6240\u6709-k\u9009\u9879\uff0c\u5c06\u90fd\u76f8\u540c\u7684\u624d\u4f1a\u5220\u9664\uff0c\u53ea\u8981\u5176\u4e2d\u6709\u4e00\u7ea7\u4e0d\u540c\u90fd\u4e0d\u4f1a\u8f7b\u6613\u5220\u9664\u7684:)\uff08\u4e0d\u4fe1\uff0c\u4f60\u53ef\u4ee5\u81ea\u5df1\u52a0\u4e00\u884csina 100 4500\u8bd5\u8bd5\u770b\uff09<\/p>\n<p><strong>11 \u6700\u8be1\u5f02\u7684\u6392\u5e8f\uff1a<\/strong><\/p>\n<p>$ sort -n -k 2.2,3.1 facebook.txt\nguge 50 3000\nbaidu 100 5000\nsohu 100 4500\ngoogle 110 5000<\/p>\n<p>\u4ee5\u7b2c\u4e8c\u4e2a\u57df\u7684\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u5f00\u59cb\u5230\u7b2c\u4e09\u4e2a\u57df\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u7ed3\u675f\u7684\u90e8\u5206\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n<p>\u7b2c\u4e00\u884c\uff0c\u4f1a\u63d0\u53d60 3\uff0c\u7b2c\u4e8c\u884c\u63d0\u53d600 5\uff0c\u7b2c\u4e09\u884c\u63d0\u53d600 4\uff0c\u7b2c\u56db\u884c\u63d0\u53d610 5\u3002<\/p>\n<p>\u53c8\u56e0\u4e3asort\u8ba4\u4e3a0\u5c0f\u4e8e00\u5c0f\u4e8e000\u5c0f\u4e8e0000\u2026.<\/p>\n<p>\u56e0\u6b640 3\u80af\u5b9a\u662f\u5728\u7b2c\u4e00\u4e2a\u300210 5\u80af\u5b9a\u662f\u5728\u6700\u540e\u4e00\u4e2a\u3002\u4f46\u4e3a\u4ec0\u4e4800 5\u5374\u572800 4\u524d\u9762\u5462\uff1f\uff08\u4f60\u53ef\u4ee5\u81ea\u5df1\u505a\u5b9e\u9a8c\u601d\u8003\u4e00\u4e0b\u3002\uff09<\/p>\n<p>\u7b54\u6848\u63ed\u6653\uff1a\u539f\u6765\u201c\u8de8\u57df\u7684\u8bbe\u5b9a\u662f\u4e2a\u5047\u8c61\u201d\uff0csort\u53ea\u4f1a\u6bd4\u8f83\u7b2c\u4e8c\u4e2a\u57df\u7684\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u5230\u7b2c\u4e8c\u4e2a\u57df\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u7684\u90e8\u5206\uff0c\u800c\u4e0d\u4f1a\u628a\u7b2c\u4e09\u4e2a\u57df\u7684\u5f00\u5934\u5b57\u7b26\u7eb3\u5165\u6bd4\u8f83\u8303\u56f4\u3002\u5f53\u53d1\u73b000\u548c00\u76f8\u540c\u65f6\uff0csort\u5c31\u4f1a\u81ea\u52a8\u6bd4\u8f83\u7b2c\u4e00\u4e2a\u57df\u53bb\u4e86\u3002\u5f53\u7136baidu\u5728sohu\u524d\u9762\u4e86\u3002\u7528\u4e00\u4e2a\u8303\u4f8b\u5373\u53ef\u8bc1\u5b9e\uff1a<\/p>\n<p>$ sort -n -k 2.2,3.1 -k 1,1r facebook.txt\nguge 50 3000\nsohu 100 4500\nbaidu 100 5000\ngoogle 110 5000<\/p>\n<p><strong>12 \u6709\u65f6\u5019\u5728sort\u547d\u4ee4\u540e\u4f1a\u770b\u5230+1 -2\u8fd9\u4e9b\u7b26\u53f7\uff0c\u8fd9\u662f\u4ec0\u4e48\u4e1c\u4e1c\uff1f<\/strong><\/p>\n<p>\u5173\u4e8e\u8fd9\u79cd\u8bed\u6cd5\uff0c\u6700\u65b0\u7684sort\u662f\u8fd9\u4e48\u8fdb\u884c\u89e3\u91ca\u7684\uff1a<\/p>\n<p>On older systems, <code>sort&rsquo; supports an obsolete origin-zero syntax<\/code>+POS1 [-POS2]\u2018 for specifying sort keys.\u00a0 POSIX 1003.1-2001 (*note Standards conformance::) does not allow this; use `-k\u2019 instead.<\/p>\n<p>\u539f\u6765\uff0c\u8fd9\u79cd\u53e4\u8001\u7684\u8868\u793a\u65b9\u5f0f\u5df2\u7ecf\u88ab\u6dd8\u6c70\u4e86\uff0c\u4ee5\u540e\u53ef\u4ee5\u7406\u76f4\u6c14\u58ee\u7684\u9119\u89c6\u4f7f\u7528\u8fd9\u79cd\u8868\u793a\u65b9\u6cd5\u7684\u811a\u672c\u55bd\uff01<\/p>\n<p>\uff08\u4e3a\u4e86\u9632\u6b62\u53e4\u8001\u811a\u672c\u7684\u5b58\u5728\uff0c\u5728\u8fd9\u518d\u8bf4\u4e00\u4e0b\u8fd9\u79cd\u8868\u793a\u65b9\u6cd5\uff0c\u52a0\u53f7\u8868\u793aStart\u90e8\u5206\uff0c\u51cf\u53f7\u8868\u793aEnd\u90e8\u5206\u3002\u6700\u6700\u91cd\u8981\u7684\u4e00\u70b9\u662f\uff0c\u8fd9\u79cd\u65b9\u5f0f\u65b9\u6cd5\u662f\u4ece0\u5f00\u59cb\u8ba1\u6570\u7684\uff0c\u4ee5\u524d\u6240\u8bf4\u7684\u7b2c\u4e00\u4e2a\u57df\uff0c\u5728\u6b64\u88ab\u8868\u793a\u4e3a\u7b2c0\u4e2a\u57df\u3002\u4ee5\u524d\u7684\u7b2c2\u4e2a\u5b57\u7b26\uff0c\u5728\u6b64\u8868\u793a\u4e3a\u7b2c1\u4e2a\u5b57\u7b26\u3002\u660e\u767d\uff1f\uff09<\/p>","protected":false},"excerpt":{"rendered":"<p>sort\u662f\u5728Linux\u91cc\u975e\u5e38\u5e38\u7528\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c\u7ba1\u6392\u5e8f\u7684\uff0c\u96c6\u4e2d\u7cbe\u529b\uff0c\u4e94\u5206\u949f\u641e\u5b9asort\uff0c\u73b0\u5728\u5f00\u59cb\uff01 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