Figure 1: Filter config file for Example 1

#
# RS/6000s
#

ibm\d+                rs6000|rs6k|aix

#
# Sun Sparcs
#

sun\d+          sparc|sunos                    # SunOS sparcs
sunsol\d+       sparc|solaris                  # Solaris sparcs
sunafs\d+       sparc|solaris|afs|solarisafs   # Solaris AFS servers

#
# HP machines
#

hp\d+           hp|hpux

#
# Auspex File Servers
#

fs\d+           auspex|nfs