preinst is in mksh 56c-1.
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 | #!/bin/sh
set -e
# This maintainer script can be called the following ways:
#
# * new-preinst "install" [$old_version]
# * new-preinst "upgrade" [$old_version]
# * old-preinst "abort-upgrade" $new_version
# Essential packages and Pre-Depends are available. Pre-Depends have
# been configured once, but may be unpacked or Half-Configured only,
# or, for "abort-upgrade", Half-Installed if their upgrade failed.
case $1 in
install)
;;
upgrade)
# drop diversion of /bin/sh if it was ours
if test -n "$2" && \
dpkg --compare-versions "$2" le '40.2-1'; then
for i in /bin/sh /usr/share/man/man1/sh.1.gz; do
div=$(dpkg-divert --list $i)
if [ -n "$div" ] && [ -z "${div%%*by mksh}" ]; then
distrib=${div% by mksh}
distrib=${distrib##* to }
mv $distrib $i
dpkg-divert --package mksh --remove $i
fi
done
:>/bin/mksh.dropdebconf
fi
;;
abort-upgrade)
;;
*)
echo >&2 "preinst called with unknown subcommand '$1'"
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
|