Provided by: dpkg-dev_1.21.1ubuntu2.6_all 
      
    
NAME
       deb-prerm - package pre-removal maintainer script
SYNOPSIS
       DEBIAN/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.
           The new-version is passed only since dpkg 1.18.5.
       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).
1.21.1                                             2025-09-09                                       deb-prerm(5)