freebsd man page for deb-prerm

deb-prerm(5)							    dpkg suite							      deb-prerm(5)

NAME
       deb-prerm - package pre-removal maintainer script

SYNOPSIS
       prerm

DESCRIPTION
       A  package  can	perform  several  pre-removal actions via maintainer scripts, by including an executable prerm file in its control archive
       (i.e. DEBIAN/prerm during package creation).

       The script can be called in the following ways:

       prerm remove
	      Before the package is removed.

       old-prerm upgrade new-version
	      Before an upgrade.

       new-prerm failed-upgrade old-version new-version
	      If the above upgrade fails.

       prerm deconfigure in-favour new-package new-version
	   [ removing old-package old-version ]
	      Before package is deconfigured while dependency is replaced due to conflict.

       prerm remove in-favour new-package new-version
	      Before the package is replaced due to conflict.

SEE ALSO
       dpkg(1).

1.19.0.5							    2018-04-16							      deb-prerm(5)