{"id":1446,"date":"2015-03-20T13:08:46","date_gmt":"2015-03-20T05:08:46","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=1446"},"modified":"2015-03-20T13:55:07","modified_gmt":"2015-03-20T05:55:07","slug":"cant-do-inplace-edit-without-backup","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=1446","title":{"rendered":"Can&#8217;t do inplace edit without backup"},"content":{"rendered":"<p>\u5b66\u4e60\u300a\u7cbe\u901a\u6b63\u5219\u8868\u8fbe\u5f0f\u300b\u8fd9\u672c\u4e66\u7684\u8fc7\u7a0b\u4e2d\uff0c\u78b0\u5230 Perl \u8bed\u8a00\u67e5\u627e\u66ff\u6362\u6587\u4ef6\u5185\u5bb9\u65f6\uff0c\u60f3\u8bd5\u4e00\u8bd5\uff0c\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<p>\u7b2c\u4e00\u6b65\uff0c\u5148\u5728 e \u76d8\u7684\u5efa\u7acb Test \u6587\u4ef6\u5939\uff0c\u5728\u5176\u4e0b\u521b\u5efa\u4e00\u4e2a testp.txt \u7684\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<br \/>\n<code><strong>testp.txt\u5185\u5bb9\uff1a<\/strong><br \/>\nI'm langlang.<br \/>\nMy name is langlang.<br \/>\nMy blog is \"http:\/\/langlang.sinaapp.com\/\".<\/code><\/p>\n<p>\u7b2c\u4e8c\u6b65\uff0c\u6253\u5f00 Perl Command Line\uff0c\u8f93\u5165\u5982\u4e0b\u547d\u4ee4\uff1a<br \/>\n<code>perl -p -i -e 's\/langlang\/langtuteng\/g' e:\\Test\\testp.txt<\/code><\/p>\n<p><span style=\"color: #ff0000;\">\u62a5\u9519\uff1aCan't do inplace edit without backup.<\/span><\/p>\n<p>\u4e0a\u7f51\u67e5\u4e86\u4e0b\uff0c\u8bf4\u662f\u5728 Linux \u4e0b\u53ef\u4ee5\u6210\u529f\uff0c\u4f46\u5728 Window \u4e0a\u4e0d\u884c\u3002Linux \u6211\u4e5f\u6ca1\u8bd5\uff0c\u4e0d\u77e5\u9053\u662f\u4e0d\u662f\u771f\u7684\u53ef\u4ee5\uff0c\u4e0d\u5acc\u9ebb\u70e6\u7684\u670b\u53cb\u53ef\u4ee5\u53bb\u8bd5\u8bd5\uff0c\u4f46 Window \u4e0a\u662f\u80af\u5b9a\u4e0d\u884c\u7684\uff0c\u539f\u56e0\u662f perl \u5728\u4fee\u6539\u6587\u4ef6\u65f6\uff0c\u4e3a\u4e86\u907f\u514d\u8bef\u64cd\u4f5c\uff0c\u6240\u4ee5\u5fc5\u987b\u628a\u539f\u6587\u4ef6\u5148\u5907\u4efd\uff0c\u7136\u540e\u624d\u80fd\u4fee\u6539\u3002<\/p>\n<p>\u4e8e\u662f\u628a\u547d\u4ee4\u6539\u6210\u4e0b\u9762\u7684\u683c\u5f0f\uff1a<br \/>\n<code>perl -p -i\".bak\" -e 's\/langlang\/langtuteng\/g' e:\\Test\\testp.txt<\/code><\/p>\n<p>\u6ca1\u62a5\u9519\uff0ctestp.txt.bak \u6587\u4ef6\u4e5f\u751f\u6210\u4e86\uff0c\u53ef\u6e90\u6587\u4ef6\u548c\u65b0\u751f\u6210\u7684\u6587\u4ef6\u90fd\u6ca1\u6709\u53d8\u5316\uff0c\u8fd8\u662f\u6ca1\u66ff\u6362\u3002<\/p>\n<p><span style=\"color: #ff0000;\">\u6ce8\u610f\uff1a\u5982\u679c\u5728\u5907\u4efd\u540e\u7f00\u540d\u65f6\u5de6\u53f3\u7528\u5355\u5f15\u53f7\uff0c\u4e0d\u62a5\u9519\uff0c\u4f46\u4f1a\u751f\u6210 testp.txt'.bak'\u6587\u4ef6\u3002<\/span><\/p>\n<p>\u5220\u9664\u751f\u6210\u7684 .bak \u6587\u4ef6\uff0c\u62b1\u7740\u8bd5\u4e00\u4e0b\u7684\u5fc3\u7406\uff0c\u628a\u547d\u4ee4\u4e2d\u7684\u5355\u5f15\u53f7\u6539\u4e3a\u53cc\u5f15\u53f7\uff1a<br \/>\n<code>perl -p -i\".bak\" -e \"s\/langlang\/langtuteng\/g\" e:\\Test\\testp.txt<\/code><\/p>\n<p>\u6ca1\u62a5\u9519\uff0c\u5907\u4efd\u6587\u4ef6\u540c\u65f6\u751f\u6210\uff0c\u6253\u5f00\u5907\u4efd\u6587\u4ef6\uff0c\u662f\u66ff\u6362\u524d\u7684\u5185\u5bb9\uff0c\u6253\u5f00 testp.txt\uff0c\u53ef\u4ee5\u770b\u5230\u6587\u672c\u201clanglang\u201d\u5df2\u66ff\u6362\u4e3a\u201clangtuteng\u201d\u4e86\uff1a<br \/>\n<code><strong>testp.txt\u5185\u5bb9\uff1a<\/strong><br \/>\nI'm langtuteng.<br \/>\nMy name is langtuteng.<br \/>\nMy blog is \"http:\/\/www.menglanglang.cn\/\".<\/code><\/p>\n<p>\u4f46\u4e66\u4e0a\u7528\u7684\u662f\u5355\u5f15\u53f7\uff0c\u53ef\u4ee5\u6210\u529f\uff0c\u4e3a\u4ec0\u4e48\u73b0\u5728\u5fc5\u987b\u7528\u53cc\u5f15\u53f7\uff0c\u4e5f\u8bb8\u662f Perl \u7248\u672c\u7684\u5347\u7ea7\u95ee\u9898\u5427\uff0c\u4f5c\u8005\u51fa\u7248\u4e66\u65f6\u7528\u7684\u662f\u8001\u7248\u672c\uff0c\u7ecf\u8fc7\u8fd9\u4e48\u591a\u5e74\u7684\u53d1\u5c55\u53d8\u5316\uff0c\u4e5f\u8bb8\u65b0\u7248\u7684 Perl \u548c\u4ee5\u524d\u591a\u591a\u5c11\u5c11\u6709\u4e9b\u5dee\u522b\u3002\u8fd9\u70b9\u5c0f\u95ee\u9898\uff0c\u65e0\u5173\u7d27\u8981\uff0c\u8fd9\u91cc\u5c31\u4e0d\u67e5\u8bc1\u4e86\uff0c\u53ea\u662f\u5927\u6982\u731c\u60f3\u4e00\u4e0b\u3002<\/p>\n<p>OK\uff0c\u9519\u8bef\u89e3\u51b3\uff0c\u4e0d\u5f97\u4e0d\u8bf4 Perl \u786e\u5b9e\u5f88\u5f3a\u5927\uff0cGood Luck\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u300a\u7cbe\u901a\u6b63\u5219\u8868\u8fbe\u5f0f\u300b\u8fd9\u672c\u4e66\u7684\u8fc7\u7a0b\u4e2d\uff0c\u78b0\u5230 Perl \u8bed\u8a00\u67e5\u627e\u66ff\u6362\u6587\u4ef6\u5185\u5bb9\u65f6\uff0c\u60f3\u8bd5\u4e00\u8bd5\uff0c\u8fc7\u7a0b\u5982\u4e0b\uff1a \u7b2c\u4e00\u6b65\uff0c\u5148 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[334],"tags":[335,606,89],"class_list":["post-1446","post","type-post","status-publish","format-standard","hentry","category-perl","tag-error","tag-perl","tag-89"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1446"}],"version-history":[{"count":0,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1446\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1446"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}