andreaturli/jclouds — comment on commit 07cbe583444cd605a7e3d05bda6d1575341c81dd
File:  line 0
By jclouds:

you can generate both and use in something like

MAC=00:aa && [[ `uname -s` = "Darwin" ]] && MAC=0:aa
arp -an |grep $MAC

this approach is slightly more correct as it couples the conditional where is is used