#!/bin/sh
set -e

update-alternatives --quiet --install /usr/bin/awk awk /usr/bin/gawk 10 \
  --slave /usr/share/man/man1/awk.1.gz awk.1.gz /usr/share/man/man1/gawk.1.gz \
  --slave /usr/bin/nawk nawk /usr/bin/gawk \
  --slave /usr/share/man/man1/nawk.1.gz nawk.1.gz /usr/share/man/man1/gawk.1.gz
for badlink in /usr/man/man1/awk.1 /usr/man/man1/nawk.1; do
  if [ -L $badlink ]; then
    if ! ls -l $(ls -l $badlink | cut -d">" -f2) >/dev/null 2>&1; then
      rm -f $badlink; fi; fi; done