たとえば % docker run -it --name hoge ubuntu /bin/bash root@db1da9fc72e9:/# useradd hoge root@db1da9fc72e9:/# exit % docker diff hoge C /etc C /etc/group A /etc/group- C /etc/gshadow A /etc/gshadow- C /etc/passwd A /etc/passwd- C /etc/shad…