preinst is in initscripts 2.88dsf-59.3ubuntu2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | #! /bin/sh
#
# initscripts preinst
#
set -e
# Remove a no-longer used conffile
#
# $1: conffile
#
# If the argument was not listed as a conffile, silently do nothing.
# Adapted from code obtained from http://wiki.debian.org/DpkgConffileHandling
eliminate_conffile() {
PKGNAME="initscripts"
CONFFILE="$1"
if [ -e "$CONFFILE" ]; then
CURRENT_MD5SUM="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
FACTORY_MD5SUM="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE'{s/ obsolete$//;s/.* //p}\"`"
if [ "$CURRENT_MD5SUM" != "$FACTORY_MD5SUM" ]; then
echo "Obsolete conffile $CONFFILE has been modified by you."
echo "Saving as $CONFFILE.dpkg-old ..."
mv -f "$CONFFILE" "$CONFFILE".dpkg-old
else
echo "Removing unmodified and obsolete conffile $CONFFILE ..."
rm -f "$CONFFILE"
fi
fi
}
case "$1" in
install|upgrade)
# mtab was removed in 2.88dsf-41+jessie1; the remaining two lines
# were merged into checkroot, which provides mtab for compatibility
if [ "$2" ] && dpkg --compare-versions "$2" lt "2.88dsf-41+jessie1" ; then
eliminate_conffile "/etc/init.d/mtab.sh"
fi
#
# Move conflicting log _file_ if present
#
[ -f /var/log/fsck ] && mv -f /var/log/fsck /var/log/fsck.dpkg-old
;;
abort-upgrade)
exit 0
;;
esac
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init.d/bootlogd 2.88dsf-42 initscripts -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init.d/stop-bootlogd-single 2.88dsf-42 initscripts -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init.d/stop-bootlogd 2.88dsf-42 initscripts -- "$@"
# End automatically added section
:
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