从容器内拷贝文件到主机上
[root@oegw1 soft]# docker psCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES8d418a7b6021 postgres "/docker-entrypoint. 7 hours ago Up 7 hours test1 [root@oegw1 soft]# docker exec -t -i 8d418a7b6021 /bin/bashroot@oegw1:/var/lib/postgresql# pwd/var/lib/postgresqlroot@oegw1:/var/lib/postgresql# lsdataroot@oegw1:/var/lib/postgresql# exitexit[root@oegw1 soft]# docker cp 8d418a7b6021:/var/lib/postgresql/data /opt/soft/
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