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Editorial Team
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Asked: 2026-05-28T06:43:49+00:00

If I have an apache file in /etc/apache2/sites-available/www.example.com and I set its filetype like

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If I have an apache file in /etc/apache2/sites-available/www.example.com and I set its filetype like so

:set filetype=apache

What does that do? Does that change the file at all? Is it only reflected in the instance of vim? The session of vim? I can manually set the filetype, but then vim warns me that I am in read only mode (/etc/apache2 needs root access). If I open vim as root, I won’t get the warning, but if I leave and open it again (as normal or root), the filetype is gone. How do I make this more permanent, at least when called from the same session file

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1 Answer

  1. Editorial Team

    set filetype changes the way vim handles the file, by invoking all the FileType autocommands. It does not persist. If you want to always open that file with filetype=apache, try adding this into your .vimrc:

    au BufRead,BufNewFile /etc/apache2/sites-available/www.example.com set filetype=apache

    You can read more about it in:

    :help 'filetype'
:help filetypes
:help :autocmd
:help .vimrc

    EDIT: as found in my /usr/share/vim/vim73/filetype.vim:

    au BufNewFile,BufRead access.conf*,apache.conf*,apache2.conf*,httpd.conf*,srm.conf* call s:StarSetf('apache')
au BufNewFile,BufRead */etc/apache2/*.conf*,*/etc/apache2/conf.*/*,*/etc/apache2/mods-*/*,*/etc/apache2/sites-*/*,*/etc/httpd/conf.d/*.conf*        call s:StarSetf('apache')

    s:StarSetf will setfiletype to apache if the filetype doesn’t match an ignored pattern. On my system, :echo g:ft_ignore_pat will show only archive file extensions as ignored. setfiletype does set filetype, but only once.

    So, at least on my system, the pattern */etc/apache2/sites-*/* would catch your filename and make it an apache file.

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