defining functions ...
creating config file ...
listing all hosts ...
Z
Z02
ZZ
y02
z
z02
z02Z02
zZ
zz
listing Z hosts
Z
Z02
ZZ
z02Z02
zZ
listing z hosts
z
z02
z02Z02
zZ
zz
listing OhTwo hosts
Z02
y02
z02
z02Z02
listing Z02 hosts
Z02
z02Z02
listing z02 hosts
z02
z02Z02
all done