Docker actual case

Operating system:
[email protected] ~]# Docker search BusyBox
NAME DESCRIPTION STARS Official automated
BusyBox BusyBox base image. 675 [OK]
Progrium/busybox [OK]
Radial/busyboxplus Full-chain, Internet enabled, BusyBox made ... All [OK]
Odise/busybox-python 3 [OK]

[email protected] ~]# Docker pull BusyBox
Latest:pulling from BusyBox
56ed16bd6310:pull Complete
Bc744c4ab376:pull Complete
digest:sha256:4a887a2326ec9e0fa90cce7b4764b0e627b5d6afcb81a3f73c85dc29cea00048
status:downloaded newer image for Busybox:latest

Run BusyBox
[email protected] ~]# Docker run-it BusyBox
/# grep
BusyBox v1.24.2 (2016-03-18 16:38:06 UTC) multi-call binary.

Usage:grep [-hhnlloqvsriwfe] [-M N] [-a/b/c N] pattern/-e pattern.../-f FILE [file] ...

Search for PATTERN in FILEs (or stdin)

viewing Mount Mount Information
/# Mount
Rootfs on/type rootfs (rw)
/dev/sda5 on/type Ext4 (rw,relatime,data=ordered)
Proc On/proc type proc (rw,nosuid,nodev,noexec,relatime)
Tmpfs on/dev type TMPFS (rw,nosuid,mode=755)
Devpts on/dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666)

To modify the storage location of a docker image
Http://blog.chinaunix.net/uid-20788636-id-4988546.html

Docker actual case