This file is indexed.

postinst 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.

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#!/bin/sh

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/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/share/man/man1/ksh.1.gz ksh.1.gz \
	    /usr/share/man/man1/mksh.1.gz
	# create compatibility symlink if necessary
	test -e /usr/bin/ksh || test -h /usr/bin/ksh || \
	    ln -s /bin/ksh /usr/bin/ksh

	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/11ubuntu1
if [ "$1" = "configure" ] && [ -x "`which update-menus 2>/dev/null`" ]; then
	update-menus
fi
# End automatically added section


exit 0