postinst is in casacore-data-sources 2-2.
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 | #!/bin/sh
set -e
case "$1" in
configure)
if [ ! -d /var/lib/casacore/data/ephemerides/Sources/ ] ; then
mkdir -p /var/lib/casacore/data/ephemerides
ln -sf /usr/share/casacore/data/ephemerides/Sources/ \
/var/lib/casacore/data/ephemerides/Sources
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
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