showenv.c

来自「unix linux 编程实践源代码」· C语言 代码 · 共 13 行

/*  showenv.c - shows how to read and print the environment
 */

extern char	**environ;    /* points to the array of strings */

main()
{
	int	i;

	for( i = 0 ; environ[i] ; i++ )
		printf("%s\n", environ[i] );
}