function append_or_replace_prefixed_line {
  local -r file="${1:-}"
  local -r prefix="${2:-}"
  local -r suffix="${3:-}"
  local -r dirname=$(dirname "${file}")
  local -r tmpfile=$(mktemp "${dirname}/filtered.XXXX")

  touch "${file}"
  awk -v pfx="${prefix}" 'substr($0,1,length(pfx)) != pfx { print }' "${file}" > "${tmpfile}"
  echo "${prefix}${suffix}" >> "${tmpfile}"
  mv "${tmpfile}" "${file}"
}