For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:aaronw/openSUSE_Tumbleweed/home:aaronw.repo
zypper refresh
zypper install kicad-symbols
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:aaronw/openSUSE_Slowroll/home:aaronw.repo
zypper refresh
zypper install kicad-symbols
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:aaronw/16.0/home:aaronw.repo
zypper refresh
zypper install kicad-symbols
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:aaronw/15.6/home:aaronw.repo
zypper refresh
zypper install kicad-symbols