Maintenance of btmp

• Get the list of users (they may not all be valid)

  
  BLIST=$(awk ‘{print $1}’ ${BTMP}.ASCII | sort -u)
  for USER in ${BLIST}
  do
    if id ${USER} > /dev/null 2>&1
    then
  # we have a valid user
      print “${USER}” >> ${RUSER_FILE}
    fi
  done