A lot of people seem to be having problems finding the mknod command, as
needed for part 3 of the assignment. For most of you, you should be able to use
the similar mkfifo command, which is a special form of mknod that
only makes named PIPEs.

Whichever one you choose to use, here are the proper paths:

	JCC-lab Solaris (Ultra 1):
		mknod  - /usr/sbin/mknod
		mkfifo - /usr/bin/mkfifo

	JCC-lab SunOS (SparcStation 4):
		mknod  - /usr/etc/mknod
		mkfifo - not present.

	Smith-lab Solaris (SparcStation 5):
		mknod  - /usr/sbin/mknod
		mkfifo - /usr/bin/mkfifo

Hopefully, this should make this part of the assignment as easy as it should be. ;)