/* Program# 40
   date : 25-12-2008
   word for vowel
*/

#include <stdio.h>
main(){
char a;
printf("\nEnter a vowel :");
scanf("%c",&a);
if(a=='a')
printf("\namazon\n");
else
if(a=='e')
printf("\nebay\n");
else
if(a=='i')
printf("\nigoogle\n");
else
if(a=='o')
printf("\nopen office\n");
else
if(a=='u')
printf("\nubuntu\n");
else
printf("\n %c not a vowel",a);
}

$ gcc p40.c  

Now the executable file is stored as a.out, to run
the program,

$ ./a.out

Enter a vowel :r

 r not a vowel

$ ./a.out

Enter a vowel :i

igoogle
$