K & R C Programs Exercise 7-1.

K and R C, Solution to Exercise 7-1:
K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language (2nd Edition). You can learn and solve K&R C Programs Exercise.
Write a C program that converts upper case to lower case or lower case to upper, depending on the name it is invoked with, as found in argv[0]. Read more about C Programming Language .

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//lower: converts upper case to lower case
//upper:converts upper case to lower case

main(int argc, *argv[])
int c;
if(strcmp(argv[0],"lower") == 0)
while((c = getchar()) != EOF)
putchar(tolower(c)) != EOF)
while(c = getchar()) != EOF)
return 0;

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