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