Language%20in%20C%20Interview%20Questions%20and%20Answers
Question: What is environment and how do I get environment for a specific entry?
Answer: While working in DOS, it stores information in a memory region called environment. In this region we can place configuration settings such as command path, system prompt, etc. Sometimes in a program we need to access the information contained in environment. The function getenv( ) can be used when we want to access environment for a specific entry. Following program demonstrates the use of this function.#include <stdio.h> #include <stdlib.h> main( ) { char *path = NULL ; path = getenv ( "PATH" ) ; if ( *path != NULL ) printf ( "nPath: %s", path ) ; else printf ( "nPath is not set" ) ; } |
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