fetch模块的功能与copy相同，都是拷贝文件，但是方向相反，fetch是从远程主机下载文件到本地 例子：
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# Store file into /tmp/fetched/host.example.com/tmp/somefile - fetch: src=/tmp/somefile dest=/tmp/fetched # Specifying a path directly - fetch: src=/tmp/somefile dest=/tmp/prefix-{{ inventory_hostname }} flat=yes # Specifying a destination path - fetch: src=/tmp/uniquefile dest=/tmp/special/ flat=yes # Storing in a path relative to the playbook - fetch: src=/tmp/uniquefile dest=special/prefix-{{ inventory_hostname }} flat=yes |
完整参数： parameter required default choices comments dest yes A directory to s……