deb-conffiles(5) dpkg suite deb-conffiles(5)
NAME
deb-conffiles - package conffiles
SYNOPSIS
DEBIAN/conffiles
DESCRIPTION
A package declares its list of conffiles by including a conffiles file in its control
archive (i.e. DEBIAN/conffiles during package creation).
This file contains a list of files, one per line, with an optional leading flag separated
by whitespace. The conffiles must be listed as absolute pathnames. Trailing whitespace
will be trimmed, but empty or whitespace-only lines are not accepted.
Files without a flag should exist in the binary package, otherwise dpkg(1) will ignore
them.
There is currently only one flag supported, remove-on-upgrade, to mark that a conffile
needs to be removed on the next upgrade (since dpkg 1.20.6). These files must not exist
in the binary package, as both dpkg(1) and dpkg-deb(1) will not accept building nor
processing such binary packages.
EXAMPLE
/etc/alternatives/README
/etc/cron.daily/dpkg
/etc/dpkg/dpkg.cfg
/etc/logrotate.d/dpkg
remove-on-upgrade /etc/some-old-file.conf
SEE ALSO
dpkg-deb(1), dpkg(1).
1.21.1 2025-09-09 deb-conffiles(5)
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