docker镜像，排除最新，标签排序，输出每个镜像的第一个（或最后一个）root@master:~#dockerimages|grep-v存储库|排序-t$'\t'-r-k2|awk'BEGIN{n=""}n!=$1&&!/latest/{n=$1;print$1":"$2}'ubuntu:18.04python:3-alpinemongo:4.2.1-bionicmaven:3mariadb:10i386/高山:3.10.3golang:alpine3.7bitnami/redis:4.0.8-r2bitnami/kafka:2.3.1-debian-9-r21bestwu/qq:officealpine:3.7
