acl无法安装在ubuntu服务器上
setfacl / getfacl命令没有在我的服务器上运行，它说：
The program 'setfacl' is currently not installed. You can install it by typing: sudo apt-get install acl 当我试图安装它时，它说：
sudo apt-get install acl Reading package lists... Done Building dependency tree Reading state information... Done Package acl is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'acl' has no installation candidate
我将以下源代码行添加到apt配置源列表中：
deb http://cz.archive.ubuntu.com/ubuntu trusty main
然后我可以正常安装acl。