For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/shells/openSUSE_Tumbleweed/shells.repo
zypper refresh
zypper install tcsh
For openSUSE Factory PPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/shells/openSUSE_Factory_PPC/shells.repo
zypper refresh
zypper install tcsh
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/shells/openSUSE_Factory_ARM/shells.repo
zypper refresh
zypper install tcsh
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/shells/openSUSE_Factory/shells.repo
zypper refresh
zypper install tcsh