1BEGIN { 2 print "bunch of commandline error messages follow\n" 3 t = ARGV[0]; print "\n" t "\n"; system(t) # usage 4 t = ARGV[0] " -f"; print "\n" t "\n"; system(t) # no program file 5 t = ARGV[0] " -f /glop/glop"; print "\n" t "\n"; system(t) # program inaccessible 6 t = ARGV[0] " -zzz"; print "\n" t "\n"; system(t) # weird option 7 t = ARGV[0] " -F"; print "\n" t "\n"; system(t) # null FS 8 t = ARGV[0] " -F :"; print "\n" t "\n"; system(t) # field sep but no program 9} 10