The following NEW packages will be installed:
  glibc-doc-reference
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 0B/1985kB of archives.
After unpacking 8065kB of additional disk space will be used.
(Reading database ... 165306 files and directories currently installed.)
Unpacking glibc-doc-reference (from .../glibc-doc-reference_2.3.6-1_all.deb) ...
dpkg: error processing /var/cache/apt/archives/glibc-doc-reference_2.3.6-1_all.deb (--unpack):
 trying to overwrite `/usr/share/doc-base/glibc-manual', which is also in package glibc-doc
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/glibc-doc-reference_2.3.6-1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
ryan@ryanubuntu:~$