fdupes from home:snagview project

需要 CentOS 7 ，用 root 執行：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:snagview/CentOS_7/home:snagview.repo
yum install fdupes

需要 RedHat RHEL-8 appstream ，用 root 執行：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:snagview/RedHat_RHEL-8_appstream/home:snagview.repo
yum install fdupes

需要 SLE 15 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:snagview/SLE_15/home:snagview.repo
zypper refresh
zypper install fdupes

需要 SLE 12 SP4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:snagview/SLE_12_SP4/home:snagview.repo
zypper refresh
zypper install fdupes