Você pode fazer algo como:
awk -F- 'BEGIN{split("Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec",m,",")}
{print m[$2], substr($0,9)}'
Ou:
awk -F- '{print substr("JanFebMarAprMayJunJulAugSepOctNovDec", \
$2*3-2,3), substr($0,9)}'
Ou:
sed 's/$/:01Jan02Feb03Mar04Apr05May06Jun07Jul08Aug09Sep10Oct11Nov12Dec/
s/.....\(..\).\(.*\):.*\(...\).*/ /'