postinst is in mksh 40.4-3.
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.
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# $MirOS: contrib/hosted/tg/deb/mksh/debian/mksh.postinst,v 1.7 2011/11/19 22:41:03 tg Exp $
set -e
# This maintainer script can be called the following ways:
#
# * new-postinst "configure" [$most_recently_configured_version]
# The package is unpacked; all dependencies are unpacked and, when there
# are no circular dependencies, configured.
#
# * old-postinst "abort-upgrade" $new_version
# * conflictors-postinst "abort-remove" "in-favour" $package
# $new_version
# * postinst "abort-remove"
# * deconfigureds-postinst "abort-deconfigure" "in-favour"
# $failed_install_package $fip_version ["removing"
# $conflicting_package $cp_version]
# The package is unpacked; all dependencies are at least Half-Installed,
# previously been configured, and not removed. In some error situations,
# dependencies may not be even fully unpacked.
#
# * postinst "triggered" "${triggers[*]}"
# For trigger-only calls, i.e. if "configure" is not called.
# remove debconf data from old versions of this package
if test -e /bin/mksh.dropdebconf; then
set +e
echo purge | debconf-communicate mksh >/dev/null 2>&1
rm -f /bin/mksh.dropdebconf
set -e
fi
case $1 in
configure)
update-alternatives --install /bin/ksh ksh /bin/mksh 12 \
--slave /usr/bin/ksh usr.bin.ksh /bin/mksh \
--slave /usr/share/man/man1/ksh.1.gz ksh.1.gz \
/usr/share/man/man1/mksh.1.gz
update-alternatives --install /bin/ksh ksh /bin/mksh-static 11 \
--slave /usr/bin/ksh usr.bin.ksh /bin/mksh-static \
--slave /usr/share/man/man1/ksh.1.gz ksh.1.gz \
/usr/share/man/man1/mksh.1.gz
add-shell /bin/mksh
add-shell /bin/mksh-static
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
triggered)
;;
*)
echo >&2 "postinst called with unknown subcommand '$1'"
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
# Automatically added by dh_installmenu
if [ "$1" = "configure" ] && [ -x "`which update-menus 2>/dev/null`" ]; then
update-menus
fi
# End automatically added section
exit 0
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