Man pages matching name dirname in section 1:

dirname.1.en	debian 10 / coreutils
dirname.1.de	debian 10 / manpages-de
dirname.1.es	debian 10 / manpages-es-extra
dirname.1.hu	debian 10 / manpages-hu
dirname.1.ja	debian 10 / manpages-ja
dirname.1.pl	debian 10 / manpages-pl
dirname.1.tr	debian 10 / manpages-tr
dirname.1.zh_CN	debian 10 / manpages-zh
dirname.1.zh_TW	debian 10 / manpages-zh
dirname.1.en	debian 11 / coreutils
dirname.1.de	debian 11 / manpages-de
dirname.1.es	debian 11 / manpages-es
dirname.1.fr	debian 11 / manpages-fr
dirname.1.hu	debian 11 / manpages-hu
dirname.1.ja	debian 11 / manpages-ja
dirname.1.nl	debian 11 / manpages-nl
dirname.1.pl	debian 11 / manpages-pl
dirname.1.tr	debian 11 / manpages-tr
dirname.1.zh_CN	debian 11 / manpages-zh
dirname.1.zh_TW	debian 11 / manpages-zh
dirname.1.en	debian 12 / coreutils
dirname.1.cs	debian 12 / manpages-cs
dirname.1.da	debian 12 / manpages-da
dirname.1.de	debian 12 / manpages-de
dirname.1.es	debian 12 / manpages-es
dirname.1.fi	debian 12 / manpages-fi
dirname.1.fr	debian 12 / manpages-fr
dirname.1.hu	debian 12 / manpages-hu
dirname.1.ja	debian 12 / manpages-ja
dirname.1.nb	debian 12 / manpages-nb
dirname.1.nl	debian 12 / manpages-nl
dirname.1.pl	debian 12 / manpages-pl
dirname.1.sr	debian 12 / manpages-sr
dirname.1.sv	debian 12 / manpages-sv
dirname.1.tr	debian 12 / manpages-tr
dirname.1.uk	debian 12 / manpages-uk
dirname.1.vi	debian 12 / manpages-vi
dirname.1.zh_CN	debian 12 / manpages-zh
dirname.1.zh_TW	debian 12 / manpages-zh