# Exercise #1

Create a C program file called '`pipe.c`' that does the following:

- Takes one command line parameter, an input filename.
- Creates a `pipe`(2) to communicate with a child process.
- Uses `fork`(2) to create a child process.
- Replaces the `stdin` of the child with the read end of the pipe.
- Replaces the `stdout` of the child so that it outputs to the file "`output.txt`".
- Execve(2)'s in the child the program `/usr/games/ppt`
- The parent process should then feed the contents of the input file
  (name given on the command line) to the child process using a read/write
  loop.
- The parent should finally wait for the child to complete using the
  waitpid(2) call.