/*
 * Assignment Six
 *
 * Using program five as a starting point, write
 * a new program that has the child check for
 * multiple pipe redirection operators. With each
 * operator discovered, a new child program will
 * have to be created to process the redirected input
 * and output. 
 *
 * The program should be able to process the following
 * commands:
 *
 * ls -l | grep ^d | wc -l
 * which counts the number of directories (lines)
 *
 * cat /etc/passwd | cut -f1 -d: | sort | pr -h Users --columns=5 | more
 * which grabs the 1st field of the password file delimited
 * with the ":" character (cut) and arranges the account names
 * in alpabetical order (sort) and formats the output into
 * number pages with the title "Users," five columns per
 * page (pr) and displays the result one page at a time (more).
 * 
 * Use the script program to show the program source code,
 * its compilation, and run time behavior.  Show BOTH
 * success and failure when executing commands for
 * each operator.
 *
 * Begin with last week's program and add the following
 * abilities.
 * A. The ability to run even if there is no "<", ">",
 *    or "|" operator on the command line.
 * B. The ability to create children for each additional
 *    pipe operator encountered on the command line.
 *
 */