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✏️ Editing: postrm

#! /bin/sh
# postrm.skeleton
# Skeleton maintainer script showing all the possible cases.
# Written by Charles Briscoe-Smith, March-June 1998.  Public Domain.

# Abort if any command returns an error value
set -e

# This script is called twice during the removal of the package; once
# after the removal of the package's files from the system, and as
# the final step in the removal of this package, after the package's
# conffiles have been removed.

# Ensure the menu system is updated
: [ ! -x /usr/bin/update-menus ] || /usr/bin/update-menus

case "$1" in
  remove)
    # This package is being removed, but its configuration has not yet
    # been purged.
    :

# Remove diversion
    : dpkg-divert --package foo --remove --rename \
    :             --divert /usr/bin/other.real /usr/bin/other

# ldconfig is NOT needed during removal of a library, only during
    # installation

;;
  purge)
    # This package has previously been removed and is now having
    # its configuration purged from the system.
    :

# we mimic dpkg as closely as possible, so we remove configuration
    # files with dpkg backup extensions too:
    ### Some of the following is from Tore Anderson:
    for ext in '~' '%' .bak .ucf-new .ucf-old .ucf-dist;  do
	rm -f /etc/foo.conf$ext
    done
 
    # remove the configuration file itself
    rm -f /etc/foo.conf

# and finally clear it out from the ucf database
    if which ucf >/dev/null; then
        ucf --purge /etc/foo.conf
    fi    
    if which ucfr >/dev/null; then
        ucfr --purge foo /etc/foo.conf
    fi

# Remove symlinks from /etc/rc?.d
    : update-rc.d foo remove >/dev/null

;;
  disappear)
    if test "$2" != overwriter; then
      echo "$0: undocumented call to \`postrm $*'" 1>&2
      exit 0
    fi
    # This package has been completely overwritten by package $3
    # (version $4).  All our files are already gone from the system.
    # This is a special case: neither "prerm remove" nor "postrm remove"
    # have been called, because dpkg didn't know that this package would
    # disappear until this stage.
    :

;;
  upgrade)
    # About to upgrade FROM THIS VERSION to version $2 of this package.
    # "prerm upgrade" has been called for this version, and "preinst
    # upgrade" has been called for the new version.  Last chance to
    # clean up.
    :

;;
  failed-upgrade)
    # About to upgrade from version $2 of this package TO THIS VERSION.
    # "prerm upgrade" has been called for the old version, and "preinst
    # upgrade" has been called for this version.  This is only used if
    # the previous version's "postrm upgrade" couldn't handle it and
    # returned non-zero. (Fix old postrm bugs here.)
    :

;;
  abort-install)
    # Back out of an attempt to install this package.  Undo the effects of
    # "preinst install...".  There are two sub-cases.
    :

if test "${2+set}" = set; then
      # When the install was attempted, version $2's configuration
      # files were still on the system.  Undo the effects of "preinst
      # install $2".
      :

else
      # We were being installed from scratch.  Undo the effects of
      # "preinst install".
      :

fi ;;
  abort-upgrade)
    # Back out of an attempt to upgrade this package from version $2
    # TO THIS VERSION.  Undo the effects of "preinst upgrade $2".
    :

;;
  *) echo "$0: didn't understand being called with \`$1'" 1>&2
     exit 0;;
esac

exit 0

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