{"id":5715,"date":"2023-01-24T08:16:52","date_gmt":"2023-01-24T08:16:52","guid":{"rendered":"http:\/\/ebhor.com\/?p=5715"},"modified":"2023-01-26T11:55:01","modified_gmt":"2023-01-26T11:55:01","slug":"writing-to-a-file-in-c-programming","status":"publish","type":"post","link":"https:\/\/www.ebhor.com\/writing-to-a-file-in-c-programming\/","title":{"rendered":"Writing to a File in C  Programming"},"content":{"rendered":"\n<p>To write on a file there are following&nbsp; function available:<\/p>\n\n\n\n<ol><li><strong>&nbsp;Function fputc()<\/strong>&nbsp;:\nfunction&nbsp;<strong>fputc() <\/strong>write individual\ncharacters at a time to the file. The syntax of this function is \u2013<\/li><\/ol>\n\n\n\n<p><strong>Syntax :<\/strong><\/p>\n\n\n\n<p><strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int &nbsp;fputc( int c, &nbsp;FILE *fp );<\/strong><\/p>\n\n\n\n<p>Function&nbsp;<strong>fputc()\n<\/strong>&nbsp;returns the written character\nwritten on success and&nbsp;&nbsp;if\nthere is an error it will return <strong>EOF (Emd of File)<\/strong>.<\/p>\n\n\n\n<ul><li><strong>Function<\/strong>&nbsp;<strong>fputs() : <\/strong>&nbsp;function&nbsp;<strong>fputs()<\/strong>&nbsp;writes the string&nbsp;<strong>\u2018<\/strong><strong>s\u2019<\/strong>&nbsp;to the output stream referenced by fp.&nbsp;The syntax of this function is \u2013<\/li><\/ul>\n\n\n\n<p><strong>Syntax :<\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>int fputs( const char *s, FILE *fp );<\/strong><\/p>\n\n\n\n<p>Function&nbsp;<strong>fputs()\n<\/strong>&nbsp;returns the non-negative value&nbsp; on success and&nbsp;&nbsp;if\nthere is an error it will return <strong>EOF (Emd of File)<\/strong>.<\/p>\n\n\n\n<ul><li><strong>Function\nfprintf(): <\/strong>Function fprintf()write\na string into a file. The syntax of this function is \u2013<\/li><\/ul>\n\n\n\n<p><strong>Syntax :<\/strong><\/p>\n\n\n\n<p><strong>int &nbsp;fprintf(FILE &nbsp;*fp,&nbsp; const\n&nbsp;char *format, &#8230;)<\/strong><\/p>\n\n\n\n<p><strong>Example: Write a C program to write a single character into file using fputc() function in file handling.<\/strong><\/p>\n\n\n\n<pre class=\"font:verdana lang:c decode:true  \">\n#include <stdio.h>\nint main() \n{\n   FILE *fp;\n\n   fp = fopen(\"c\/Book1.txt\", \"w+\");  \t\t\t \/\/opening file Book1.txt for write \n   fprintf(fp, \"Hello  hii  how are you \\n\");     \t\t\/\/write a string into file Book1.txt \n   fputs(\"I am aditya  \\n\", fp);         \t\t\t\/\/write a string into file Book1.txt\n   fclose(fp);              \t\t\t\t\t\/\/closing file  \n}\n<\/pre>\n\n\n\n<p><strong>OUTPUT<\/strong><\/p>\n\n\n\n<p>a<br><strong>BOOK1.txt<\/strong><\/p>\n\n\n\n<p>&nbsp;<strong>Example: Write a C program to write a string into a file\nusing fputs() and fprintf() function in file handling.<\/strong><\/p>\n\n\n\n<pre class=\"font:verdana lang:c decode:true  \">\n#include <stdio.h>\nint main() \n{\n   FILE *fp;\n\n   fp = fopen(\"c\/Book1.txt\", \"w+\");  \t\t\t \/\/opening file Book1.txt for write \n   fprintf(fp, \"Hello  hii  how are you \\n\");     \t\t\/\/write a string into file Book1.txt \n   fputs(\"I am aditya  \\n\", fp);         \t\t\t\/\/write a string into file Book1.txt\n   fclose(fp);              \t\t\t\t\t\/\/closing file  \n}\n<\/pre>\n\n\n\n<p><strong>OUTPUT<\/strong><\/p>\n\n\n\n<p>Hello&nbsp; hii&nbsp; how are you <br>I am aditya<br><strong><br>Book1.txt<\/strong><\/p>\n\n\n\n<p><strong>Description:<\/strong>\nWhen&nbsp;\nwe run the above program , it creates a new file&nbsp;<strong>Book1.txt<\/strong>&nbsp;in \/c directory and writes two lines\nusing fputs() and fprintf() functions.<\/p>\n\n\n\n<p><strong>Example :&nbsp;Write a C program to open a file, write in it and close the file.<\/strong><\/p>\n\n\n\n<pre class=\"font:verdana lang:c decode:true  \">\n# include <stdio.h> \n# include <string.h>\nint main( ) \n{ \n      FILE *fp ;     \t\t\t \t\t\t\/\/ Declare the file pointer fp\n    char str[30] = \"i am aditya from it department\"; \t\t \/\/ data to be written in file \n        \n    fp = fopen(\"Book1.txt\", \"w\") ;    \t\t\t  \/\/ Open file Book1.txt using for write\n      \n    if ( fp == NULL )           \t\t\t\t\/\/ Check if this filePointer is null \n    { \n        printf( \"failed to open file\" ) ; \n    } \n    else\n    { \t printf(\"The file is now opened.\\n\") ; \n          \n            \t if ( strlen (  str  ) > 0 ) \t\t\/\/ check the length of data >0\n        \t\t{ \n     \t\t\tfputs(str, fp) ;     \/\/ writing in the file using fputs() \n            \t\tfputs(\"\\n\", fp) ; \n        \t\t} \n          \n        fclose(fp) ;\t\t\/\/ closing file  \n        printf(\"The file is now closed.\") ; \n    } \n    return 0;         \n}\n<\/pre>\n\n\n\n<p><strong>&nbsp; OUTPUT<\/strong><\/p>\n\n\n\n<p>i am aditya from it department<br><br><strong>Book1.txt<\/strong><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>To write on a file there are following&nbsp; function available: &nbsp;Function fputc()&nbsp;: function&nbsp;fputc() write individual characters at a time to the file. The syntax of this function is \u2013 Syntax : &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int &nbsp;fputc( int c, &nbsp;FILE *fp ); Function&nbsp;fputc() &nbsp;returns the written character written on success and&nbsp;&nbsp;if there is an error it will return &#8230; <a title=\"Writing to a File in C  Programming\" class=\"read-more\" href=\"https:\/\/www.ebhor.com\/writing-to-a-file-in-c-programming\/\" aria-label=\"More on Writing to a File in C  Programming\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[283],"tags":[282,288,295],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Writing to a File in C Programming - Ebhor.com<\/title>\n<meta name=\"description\" content=\"Writing to a File in C Programming file handling functions fputc fprintf synatax and description writing to a file example\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ebhor.com\/writing-to-a-file-in-c-programming\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Writing to a File in C Programming - 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