Usando o GNU awk
:
awk -F\| '{print gensub(/Ordernum=(.*)/,"\1","g",$2)","gensub(/mn=(.*)/,"\1","g",$3)"/"gensub(/yr=(.*)/,"\1","g",$4)","gensub(/id=(.*)/,"\1","g",$5)","gensub(/Name=(.*)/,"\1","g",$6)","gensub(/Street=(.*)/,"\1","g",$7)","gensub(/City=(.*)/,"\1","g",$8)","gensub(/State=(.*)/,"\1","g",$9)","gensub(/Zip=(.*)/,"\1","g",$10)","gensub(/Country=(.*)/,"\1","g",$11)}'