{"id":145120,"date":"2025-05-22T12:38:54","date_gmt":"2025-05-22T07:08:54","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145120"},"modified":"2025-05-22T12:38:54","modified_gmt":"2025-05-22T07:08:54","slug":"how-to-create-your-own-command-in-c","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/how-to-create-your-own-command-in-c\/","title":{"rendered":"How to Create Your Own Command in C"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">#include&lt;stdio.h&gt;\r\n#include&lt;conio.h&gt;\r\nint main(int argc,char *argv[])\r\n{\r\n    if(argc==2)\r\n    {\r\n      FILE *fp=NULL;\r\n      fp=fopen(argv[1],\"r\");\r\n      if(fp==NULL)\r\n        printf(\"File not found\");\r\n    else\r\n    {\r\n          char ch;\r\n          while(((ch=fgetc(fp))!=EOF))\r\n          {\r\n              printf(\"%c\",ch);\r\n          }\r\n          fclose(fp);\r\n    }\r\n\r\n    }\r\n    else\r\n      printf(\"Invalid command....\"); \r\n\r\n\r\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 #include&lt;stdio.h&gt; #include&lt;conio.h&gt; int main(int argc,char *argv[]) { if(argc==2) { FILE *fp=NULL; fp=fopen(argv[1],&#8221;r&#8221;); if(fp==NULL) printf(&#8220;File not found&#8221;); else { char ch; while(((ch=fgetc(fp))!=EOF)) { printf(&#8220;%c&#8221;,ch); } fclose(fp); } } else printf(&#8220;Invalid command&#8230;.&#8221;); } &nbsp;<\/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":[34237,23914,28585,29219,29218,34236,34235,34238],"class_list":["post-145120","post","type-post","status-publish","format-standard","hentry","category-c-programming","tag-c-program-to-create-your-own-command","tag-c-programming","tag-c-tutorial","tag-c-practical","tag-c-program","tag-create-your-own-command-in-c","tag-how-to-create-your-own-command-in-c","tag-make-your-own-command-in-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Create Your Own Command in C - 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\/how-to-create-your-own-command-in-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Create Your Own Command in C - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 #include&lt;stdio.h&gt; #include&lt;conio.h&gt; int main(int argc,char *argv[]) { if(argc==2) { FILE *fp=NULL; fp=fopen(argv[1],&quot;r&quot;); if(fp==NULL) printf(&quot;File not found&quot;); else { char ch; while(((ch=fgetc(fp))!=EOF)) { printf(&quot;%c&quot;,ch); } fclose(fp); } } else printf(&quot;Invalid command....&quot;); } &nbsp;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/how-to-create-your-own-command-in-c\/\" \/>\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=\"2025-05-22T07:08:54+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":"How to Create Your Own Command in C - 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\/how-to-create-your-own-command-in-c\/","og_locale":"en_US","og_type":"article","og_title":"How to Create Your Own Command in C - DataFlair","og_description":"Program 1 #include&lt;stdio.h&gt; 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