in reply to Re: Script to convert HBA WWNs to lowercase and add ":"
in thread Script to convert HBA WWNs to lowercase and add ":"[Updated]

echo 20000090fa173c04              | perl -lane 's/(..)/$1:/g && chop;
+ print'

[download]
or 
echo 20000090fa173c04              | perl -lane 's/(..)/$1:/g && chop;
+ print lc'

[download]
or 
echo 20000090fa173c04              | perl -lane 's/(..)/$1:/g && chop;
+ print uc'

[download]

In Section Cool Uses for Perl