deb-prerm(5)              (2021-04-13)               deb-prerm(5)

     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.

          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).

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