{"id":144598,"date":"2025-03-20T12:11:52","date_gmt":"2025-03-20T06:41:52","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=144598"},"modified":"2025-03-20T12:11:52","modified_gmt":"2025-03-20T06:41:52","slug":"c-program-to-copy-and-merge-file","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/c-program-to-copy-and-merge-file\/","title":{"rendered":"C Program to Copy and Merge File"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Program for copy file\r\n#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\nint main()\r\n{\r\n    FILE *fp1,*fp2;\r\n    char ch;\r\n    system(\"cls\");\r\n    fp1=fopen(\"d:\/\/mydata\/mystring.txt\",\"r\");\r\n    fp2=fopen(\"d:\/\/mydata\/mytemp.txt\",\"w\"); \r\n    if(fp1==NULL || fp2==NULL)\r\n      printf(\"\\n File error\");\r\n    else\r\n    {\r\n          while((ch=fgetc(fp1))!=EOF)\r\n          {\r\n              fputc(ch,fp2);\r\n          }\r\n          fclose(fp1);\r\n          fclose(fp2);\r\n          printf(\"File copied.......\");\r\n    }  \r\nreturn 0;\r\n}<\/pre>\n<h3>Program 2<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Program for merge file\r\n#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\nint main()\r\n{\r\n      FILE *fp1=NULL,*fp2=NULL,*fp3=NULL;\r\n      char ch;\r\n      system(\"cls\");\r\n        fp1=fopen(\"d:\/\/mydata\/mystring.txt\",\"r\");\r\n        fp2=fopen(\"d:\/\/mydata\/student.txt\",\"r\");\r\n        fp3=fopen(\"d:\/\/mydata\/stringstudent.txt\",\"a\");\r\n        if(fp1==NULL || fp2==NULL|| fp3==NULL)\r\n           printf(\"File error\");\r\n        else\r\n        {\r\n              while((ch=fgetc(fp1))!=EOF)\r\n              {\r\n                    fputc(ch,fp3);\r\n              }\r\n              fclose(fp1);\r\n                   \r\n            while((ch=fgetc(fp2))!=EOF)\r\n              {\r\n                    fputc(ch,fp3);\r\n              }  \r\n              fclose(fp2);\r\n              fclose(fp3);\r\n              printf(\"Merging done\");\r\n        }     \r\n}<\/pre>\n<h3>Program 3<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/ Program for count space ,lines , letter\r\n#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\n#include&lt;ctype.h&gt;\r\nint main()\r\n{\r\n    int lt=0,sp=0,nl=0;\r\n    FILE *fp=NULL;\r\n    char ch;\r\n    system(\"cls\");\r\n    fp=fopen(\"d:\/\/mydata\/student.txt\",\"r\");\r\n    if(fp==NULL)\r\n      printf(\"file not found\");\r\n    else\r\n    {\r\n        while((ch=fgetc(fp))!=EOF)\r\n        {\r\n             if(iswspace(ch))\r\n                sp++;\r\n             else if(isupper(ch))\r\n               nl++;\r\n             else\r\n               lt++;     \r\n        }\r\n        printf(\"\\nTotal Letters : %d\",lt);\r\n        printf(\"\\nTotal Space  : %d\",sp);\r\n        printf(\"\\nTotal Lines   : %d\",nl);\r\n        fclose(fp);\r\n    }  \r\n    return 0;\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ Program for copy file #include&lt;stdio.h&gt; #include&lt;conio.h&gt; int main() { FILE *fp1,*fp2; char ch; system(&#8220;cls&#8221;); fp1=fopen(&#8220;d:\/\/mydata\/mystring.txt&#8221;,&#8221;r&#8221;); fp2=fopen(&#8220;d:\/\/mydata\/mytemp.txt&#8221;,&#8221;w&#8221;); if(fp1==NULL || fp2==NULL) printf(&#8220;\\n File error&#8221;); else { while((ch=fgetc(fp1))!=EOF) { fputc(ch,fp2); } fclose(fp1); fclose(fp2); printf(&#8220;File&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19488],"tags":[33887,33889,33888,23914,28585,29219,29218,33890,33892,33891],"class_list":["post-144598","post","type-post","status-publish","format-standard","hentry","category-c-programming","tag-c-program-to-copy-file","tag-c-program-to-count-space-lines-letters","tag-c-program-to-merge-files","tag-c-programming","tag-c-tutorial","tag-c-practical","tag-c-program","tag-how-to-copy-a-file-in-c","tag-how-to-count-space-lines-letters","tag-how-to-merge-files-in-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C Program to Copy and Merge File - DataFlair<\/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:\/\/data-flair.training\/blogs\/c-program-to-copy-and-merge-file\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C Program to Copy and Merge File - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Program for copy file #include&lt;stdio.h&gt; #include&lt;conio.h&gt; int main() { FILE *fp1,*fp2; char ch; system(&quot;cls&quot;); fp1=fopen(&quot;d:\/\/mydata\/mystring.txt&quot;,&quot;r&quot;); fp2=fopen(&quot;d:\/\/mydata\/mytemp.txt&quot;,&quot;w&quot;); if(fp1==NULL || fp2==NULL) printf(&quot;n File error&quot;); else { while((ch=fgetc(fp1))!=EOF) { fputc(ch,fp2); } fclose(fp1); fclose(fp2); printf(&quot;File&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/c-program-to-copy-and-merge-file\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-20T06:41:52+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C Program to Copy and Merge File - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/c-program-to-copy-and-merge-file\/","og_locale":"en_US","og_type":"article","og_title":"C Program to Copy and Merge File - DataFlair","og_description":"Program 1 \/\/ Program for copy file #include&lt;stdio.h&gt; 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