CentOS 7中如何安装Snapd？本篇文章为大家分享一下CentOS 7安装Snapd具体步骤，有需要的小伙伴可以参考一下。
1、首先安装COPR插件和EPEL，通过添加epel存储库并安装copr yum插件来启动安装，运行如下命令：
sudo yum install epel-release
sudo yum install yum-plugin-copr
2、然后添加repo：
sudo yum copr enable ngompa/snapcore-el7
3、添加存储库后，安装snapd软件包，运行以下命令：
sudo yum -y install snapd
4、等待安装完成后启用snapd socket：
sudo systemctl enable --now snapd.socket
5、限制需要从/snap到/var/lib/snapd/snap下的/snap或符号链接下的snaps，为它创建一个符号链接，如下命令：
sudo ln -s /var/lib/snapd/snap /snap
做到这里，Snapd已经安装完成了。
附：snap用法及参数
snap --help
应用选项:
--version——打印版本并退出
帮助选项:
-h, --help——显示此帮助消息
可用的命令:
abort——中止待定更改
ack——Adds an assertion to the system
alias——Sets up a manual alias
aliases——Lists aliases in the system
buy——Buys a snap
changes——List system changes
connect——Connects a plug to a slot
disable——Disables a snap in the system
disconnect——Disconnects a plug from a slot
download——Downloads the given snap
enable——Enables a snap in the system
find——Finds packages to install (aliases: search)
get——Prints configuration options
help——帮助
info——show detailed information about a snap
install——Installs a snap to the system
interface——Lists snap interfaces
interfaces——Lists interfaces in the system
known——Shows known assertions of the provided type
list——List installed snaps
login——Authenticates on snapd and the store
logout——Log out of the store
logs——Retrieve logs of services
pack——pack the given target dir as a snap
prefer——Prefer aliases from a snap and disable conflicts
refresh——Refreshes a snap in the system
remove——Removes a snap from the system
restart——Restart services
revert——Reverts the given snap to the previous state
run——Run the given snap command
services——Query the status of services
set——Changes configuration options
start——Start services
stop——Stop services
switch——Switches snap to a different channel
tasks——List a change's tasks (aliases: change) try——Tests a snap in the system unalias——Unalias a manual alias or an entire snap version ——Shows version details watch——Watch a change in progress whoami——Prints the email the user is logged in with. 
