Script to compare rpm leaves on two machines

difference-leaves

#!/usr/bin/ruby

ref = 'lxplus6.cern.ch'
target = 'i130215090503.cern.ch'

refrpms = %x"ssh root@#{ref} \"package-cleanup -q --all --leaves |  xargs -i rpm --queryformat '%{name}.%{arch}\n' -q {}\" ".split

targetrpms = %x"ssh root@#{target} \"package-cleanup -q --all --leaves |  xargs -i rpm --queryformat '%{name}.%{arch}\n' -q {}\" ".split

puts "### Missing leaves on target machine"
puts refrpms - targetrpms

puts "### Additional leaves target machine"
puts targetrpms - refrpms