This file is indexed.

postinst is in libi2c-dev 4.0-2.

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.

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#! /bin/sh
# postrm script for libi2c-dev

set -e

case "$1" in
    configure)
        if test -n "$2" && dpkg --compare-versions "$2" lt "4.0-1~"; then 
            dpkg-divert --package libi2c-dev --rename --remove /usr/include/linux/i2c-dev.h
        fi
    ;;
    *)
        echo "postrm called with unknown argument \`$1'" >&2
        exit 0
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.