{"id":15753,"date":"2022-10-12T21:44:07","date_gmt":"2022-10-12T16:14:07","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-replacing-a-certain-word-in-a-text-file\/"},"modified":"2022-10-12T21:44:07","modified_gmt":"2022-10-12T16:14:07","slug":"solved-replacing-a-certain-word-in-a-text-file","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-replacing-a-certain-word-in-a-text-file\/","title":{"rendered":"[Solved] Replacing a certain word in a text file"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-27239179\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"27239179\" data-parentid=\"27239095\" data-score=\"3\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>If you don&#8217;t care about memory usage:<\/p>\n<pre><code>string fileName = @\"C:\\Users\\Greg\\Desktop\\Programming Files\\story.txt\";\nFile.WriteAllText(fileName, File.ReadAllText(fileName).Replace(\"tea\", \"cabbage\"));\n<\/code><\/pre>\n<p>If you have a multi-line file that doesn&#8217;t randomly split words at the end of the line, you could modify one line at a time in a more memory-friendly way:<\/p>\n<pre><code>\/\/ Open a stream for the source file\nusing (var sourceFile = File.OpenText(fileName))\n{\n    \/\/ Create a temporary file path where we can write modify lines\n    string tempFile = Path.Combine(Path.GetDirectoryName(fileName), \"story-temp.txt\");\n    \/\/ Open a stream for the temporary file\n    using (var tempFileStream = new StreamWriter(tempFile)) \n    {\n        string line;\n        \/\/ read lines while the file has them\n        while ((line = sourceFile.ReadLine()) != null) \n        {\n            \/\/ Do the word replacement\n            line = line.Replace(\"tea\", \"cabbage\");\n            \/\/ Write the modified line to the new file\n            tempFileStream.WriteLine(line);\n        }\n    }\n}\n\/\/ Replace the original file with the temporary one\nFile.Replace(\"story-temp.txt\", \"story.txt\", null);\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Replacing a certain word in a text file <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] If you don&#8217;t care about memory usage: string fileName = @&#8221;C:\\Users\\Greg\\Desktop\\Programming Files\\story.txt&#8221;; File.WriteAllText(fileName, File.ReadAllText(fileName).Replace(&#8220;tea&#8221;, &#8220;cabbage&#8221;)); If you have a multi-line file that doesn&#8217;t randomly split words at the end of the line, you could modify one line at a time in a more memory-friendly way: \/\/ Open a stream for the source file using &#8230; <a title=\"[Solved] Replacing a certain word in a text file\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-replacing-a-certain-word-in-a-text-file\/\" aria-label=\"More on [Solved] Replacing a certain word in a text file\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,575,3547,4063],"class_list":["post-15753","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-file-io","tag-streamreader","tag-streamwriter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Replacing a certain word in a text file - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-replacing-a-certain-word-in-a-text-file\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Replacing a certain word in a text file - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] If you don&#8217;t care about memory usage: string fileName = @&quot;C:UsersGregDesktopProgramming Filesstory.txt&quot;; File.WriteAllText(fileName, File.ReadAllText(fileName).Replace(&quot;tea&quot;, &quot;cabbage&quot;)); If you have a multi-line file that doesn&#8217;t randomly split words at the end of the line, you could modify one line at a time in a more memory-friendly way: \/\/ Open a stream for the source file using ... 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