preinst is in bacula-common 9.0.6-1build1.
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 | #!/bin/sh
set -e
case "$1" in
install)
if ! getent passwd bacula >/dev/null; then
echo -n "Adding user 'bacula'... "
adduser --system --group --home /var/lib/bacula bacula 2>&1 > /dev/null
usermod -c "Bacula" bacula
usermod -G tape bacula
echo "Ok."
fi
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
# Automatically added by dh_installdeb/11.1.4ubuntu1
dpkg-maintscript-helper rm_conffile /etc/tmpfiles.d/bacula.conf 7.4.3\+dfsg-2\~ -- "$@"
# End automatically added section
exit 0
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