This file is indexed.

postinst is in grub-efi 2.02~beta2-22+deb8u1.

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

case "$1" in
  configure)
    if dpkg --compare-versions "$2" lt-nl 2.00-6; then
      # Force dpkg to replace this directory with a symlink.
      if [ ! -L /usr/share/doc/grub-efi ] && [ -d /usr/share/doc/grub-efi ]; then
        if rmdir /usr/share/doc/grub-efi 2>/dev/null; then
          ln -sf grub-common /usr/share/doc/grub-efi
        fi
      fi
    fi
  ;;
esac



exit 0