preinst is in openssh-server 1:7.6p1-4ubuntu0.3.
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 | #!/bin/sh
set -e
action=$1
version=$2
if [ "$action" = upgrade ] || [ "$action" = install ]
then
if dpkg --compare-versions "$version" lt 1:5.5p1-6 && \
[ -d /run/sshd ]; then
# make sure /run/sshd is not removed on upgrades
touch /run/sshd/.placeholder
fi
fi
# Automatically added by dh_installdeb/11.1.6ubuntu1
dpkg-maintscript-helper mv_conffile /etc/pam.d/ssh /etc/pam.d/sshd 1:4.7p1-4~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/init/ssh.conf 1:7.5p1-6~ -- "$@"
# End automatically added section
exit 0
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