xxx@yyyyy:~$ sudo apt --fix-broken install [sudo] password for xx: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following additional packages will be installed: perl Recommended packages: rename The following packages will be upgraded: perl 1 upgraded, 0 newly installed, 0 to remove and 86 not upgraded. Need to get 0 B/218 kB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y (Reading database ... 204124 files and directories currently installed.) Preparing to unpack .../perl_5.24.1-3+deb9u6_armhf.deb ... Unpacking perl (5.24.1-3+deb9u6) over (5.24.1-3+deb9u5) ... dpkg: error processing archive /var/cache/apt/archives/perl_5.24.1-3+deb9u6_armhf.deb (--unpack): trying to overwrite '/usr/bin/perldoc', which is also in package perl-doc 5.24.1-3+deb9u5 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/perl_5.24.1-3+deb9u6_armhf.deb E: Sub-process /usr/bin/dpkg returned an error code (1)