drbl 2.8.25-1 / usr / sbin / drbl-useradd-range

#!/bin/bash
# Author: Blake, Kuo-Lien Huang
# License: GPL
# Description:
#   * creat accounts with prefix and specific range
#
# Modified by Steven Shiau <steven@nchc.org.tw> to used in DRBL for Redhat

# Load DRBL setting and functions
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"

. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions

#
ACCOUNT_FILE_TMP=`mktemp /tmp/account_tmp.XXXXXX`

#
check_if_root

#
run_cmd="`basename $0`"

if [ -n "$(basename $0 | grep -E "useradd")" ]; then
  mode="useradd"
elif [ -n "$(basename $0 | grep -E "userdel")" ]; then
  mode="userdel"
else
  echo "Unknown mode!"
  exit 1
fi

if [ $# -ne 3 -a $# -ne 4 -a $# -ne 5 ]; then
  echo "Usage:"
  echo "To add accounts:"
  echo "drbl-useradd-range name_prefix start_no end_no groupname password_opt"
  echo "password_opt:"
  echo "If one digit, it's the length of randomly created password."
  echo "If blank, it will be randomly generated with 8 characters."
  echo "Other setting is the password itself."
  echo "Ex: drbl-useradd-range student 2 5 g3c2 8"
  echo "or"
  echo "drbl-useradd-range student 2 5 g3c2 drblnice"
  echo 
  echo "To delete accounts:"
  echo "drbl-userdel-range name_prefix start_no end_no <groupname>"
  echo "Ex: drbl-userdel-range student 2 5 g3c2"
  echo "or"
  echo "drbl-userdel-range student 2 5"
  exit 1
fi

name_prefix=$1
start_no=$2
end_no=$3
groupname=$4
password_opt=$5

# check if groupname is not valid one
if `echo "$groupname" | grep -q "^[0-9]"`; then
   echo "groupname can NOT begin with digits (0-9)!"
   echo "The one you specified is \"$groupname\""
   echo "Program terminated"
   exit 1
fi 

ask_and_load_lang_set

#
i=$start_no
student=$name_prefix
nnum=`echo -n "$end_no" | wc -c`
while [ $i -le $end_no ] ; do
  label="$i"
  n=`echo -n "$label" | wc -c`
  while [ $n -lt $nnum ]; do
    label="0$label"
    n=`echo -n "$label" | wc -c`
  done
  # output the results to temp file
  echo "$student$label $groupname $password_opt" >> $ACCOUNT_FILE_TMP
  i=`expr $i + 1`
done

# useradd mode
if [ "$mode" = "useradd" ]; then
  while read id groupname password_opt; do
    if ! grep -q "^$groupname:" /etc/group; then
      echo -n "Creating group $groupname..."
      /usr/sbin/groupadd "$groupname"
      echo "done!"
    fi
    if ! grep -q "^$id:" /etc/passwd; then
      echo -n "Creating account $id..."
      /usr/sbin/useradd -m -G "$groupname" "$id"
      echo "done!"
    else
      echo "Account $id exists! Skip!"
    fi
  
    case "$password_opt" in
     [0-9]|"")
        # get one digit, so it must be the length of password
        # or it's empty, we set it as $password_opt_default
        if [ -z "$password_opt" ]; then
          echo "You did NOT set the length of password, set it as $PASSWD_LENGTH_DEFAULT." 
          password_opt="$PASSWD_LENGTH_DEFAULT"
        fi
        echo "Randomly set password from password length..." 
	make_random_password $password_opt
	random_pw=$random_password
        echo "The password of $id is \"$random_pw\""
        echo "$id:$random_pw" | /usr/sbin/chpasswd
        ;;
     *)
        echo "Set password from input..." 
        echo "The password of $id is \"$password_opt\""
        echo "$id:$password_opt" | /usr/sbin/chpasswd
    esac  
    echo "finished creating account for $id"
  done < $ACCOUNT_FILE_TMP
fi

# useradd mode
if [ "$mode" = "userdel" ]; then
   user_2_be_removed="$(awk -F" " '{print $1}' $ACCOUNT_FILE_TMP)"
   user_2_be_removed="$(echo $user_2_be_removed)"  # Make it in one line
   echo "User(s) to be removed:"
   echo "$msg_delimiter_star_line"
   [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
   echo "$user_2_be_removed"
   [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
   echo "$msg_delimiter_star_line"
   echo -n "Do you also want to clean user's home directory [y/N] ? "
   read clean_home
   case "$clean_home" in
      y|Y|[yY][eE][sS]) 
         echo "Warning! The user's home directory will be deleted! Are you sure ?"
         echo -n "[y/N] "
         read clean_home_confirm
         case "$clean_home_confirm" in
            y|Y) 
               RM_HOME_OPT="-r"
               ;;
            *)
               RM_HOME_OPT=""
         esac
         ;;
      *)
         RM_HOME_OPT=""
   esac
   echo -n "Do you also want to clean group [Y/n] ? "
   read clean_group
   case "$clean_group" in
      n|N|[nN][oO]) 
         RM_GROUP_OPT=""
         ;;
      *)
         RM_GROUP_OPT="yes"
   esac
   while read id groupname password_opt; do 
    if [ "$RM_GROUP_OPT" = "yes" ]; then
      if [ -n "$groupname" ]; then
        if grep -q "^$groupname:" /etc/group; then
          echo -n "Deleting group $groupname..."
          /usr/sbin/groupdel $groupname
          echo "done!"
        else
          [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
          echo "Can NOT find group $groupname!!!"
          [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
        fi
      fi
    fi
    
    if grep -q "^$id:" /etc/passwd; then
      echo -n "Deleting account $id..."
      /usr/sbin/userdel $RM_HOME_OPT $id
      echo "done!"
    else
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "Can NOT find account $id!!!"
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    fi
   done < $ACCOUNT_FILE_TMP

fi
# clean the temp file
[ -f "$ACCOUNT_FILE_TMP" ] && rm -f $ACCOUNT_FILE_TMP

#
echo "now update the yp data in /var/yp ..."
make -C /var/yp
echo "done!"