postinst is in java-common 0.56ubuntu2.
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 | #!/bin/sh
set -e
case "$1" in
configure)
[ -d /etc/.java ] || mkdir -m 755 /etc/.java
[ -d /etc/.java/.systemPrefs ] || mkdir -m 755 /etc/.java/.systemPrefs
if [ ! -f /etc/.java/.systemPrefs/.system.lock ]; then
touch /etc/.java/.systemPrefs/.system.lock
chmod 644 /etc/.java/.systemPrefs/.system.lock
fi
if [ ! -f /etc/.java/.systemPrefs/.systemRootModFile ]; then
touch /etc/.java/.systemPrefs/.systemRootModFile
chmod 644 /etc/.java/.systemPrefs/.systemRootModFile
fi
esac
exit 0
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