usrgrp_add.sh

usrgrp_add.sh

#!/bin/bash

# Pre-check
if [ -f ./group.list ];
then
  echo "[SUCCESS] ./group.list is found"
else
  echo "[ERROR] ./group.list file is not found.";
  exit 1;
fi

if [ -f ./user.list ];
then
  echo "[SUCCESS] ./user.list is found"
else
  echo "[ERROR] ./user.list file is not found.";
  exit 1;
fi

# Load some files
ADD_GROUPS=( `cat ./group.list | tr -d '\r' | tr '\n' ' '` );
ADD_USERS=( `cat ./user.list   | tr -d '\r' | tr '\n' ' '` );

# Add some Groups
for i in "${ADD_GROUPS[@]}"; do

  # Get group id and group name.
  GRPID=`echo ${i} | cut -f 1 -d:`;
  GRPNM=`echo ${i} | cut -f 2 -d:`;
  CHKID=`echo "${GRPID}" | sed "s/[a-zA-Z].*//g"`;
  CHKNM=`echo "${GRPNM}" | sed "s/[0-9].*//g"`;

  # Check group id and group name.
  if [ -z ${GRPID} -o -z ${GRPNM} ];
  then
    echo "[ERROR] id or name is empty";
    exit 1;
  fi

  if [ x"${GRPID}" != x"${CHKID}" ];
  then
    echo "[ERROR] Bad id(${GRPID})";
    exit 1;
  fi

  if [ -z ${CHKNM} ];
  then
    echo "[ERROR] Bad name(${GRPNM})";
    exit 1;
  fi

  if [ ${GRPID} = ${GRPNM} ];
  then
    echo "[ERROR] Bad id(ID=${GRPID}) or name(NAME=${GRPNM})";
    exit 1;
  fi

  if [ x"`grep ${GRPNM} /etc/group`" = "x"  ];
  then
    groupadd -g ${GRPID} ${GRPNM} >/dev/null 2>&1
    if [ "$?" = "0" ];
    then
      echo "[SUCCESS] Group ${GRPNM}(GID=${GRPID}) is added.";
    else
      echo "[ERROR] Group ${GRPNM}(GID=${GRPID}) is not able to add.";
      exit 1;
    fi
  else
    echo "[SKIP] ${GRPNM} is already exists.";
  fi

done

# Add some Users
for i in "${ADD_USERS[@]}"; do

  # Get user id and user name.
  USRID=`echo ${i} | cut -f 1 -d:`;
  USRNM=`echo ${i} | cut -f 2 -d:`;
  USRGR=`echo ${i} | cut -f 3 -d:`;
  CHKID=`echo "${USRID}" | sed "s/[a-zA-Z].*//g"`;
  CHKNM=`echo "${USRNM}" | sed "s/[0-9].*//g"`;
  CHKGR=`echo "${USRGR}" | sed "s/[0-9].*//g"`;

  # Check user id and user name.
  if [ -z ${USRID} -o -z ${USRNM} ];
  then
    echo "[ERROR] id or name is empty";
    exit 1;
  fi

  if [ x"${USRID}" != x"${CHKID}" ];
  then
    echo "[ERROR] Bad id(${USRID})";
    exit 1;
  fi

  if [ -z ${CHKNM} ];
  then
    echo "[ERROR] Bad name(${USRNM})";
    exit 1;
  fi

  if [ ${USRID} = ${USRNM} ];
  then
    echo "[ERROR] Bad id(ID=${USRID}) or name(NAME=${USRNM})";
    exit 1;
  fi

  if [ -z ${CHKGR} ];
  then
    echo "[ERROR] Bad group(${USRGR})";
    exit 1;
  fi

  if [ x"`grep ${USRNM} /etc/passwd`" = "x"  ];
  then
    useradd -d /home/${USRNM} -m -s /bin/bash -u ${USRID} -g ${USRGR} ${USRNM} >/dev/null 2>&1
    if [ "$?" = "0" ];
    then
      echo "[SUCCESS] User ${USRNM}(UID=${USRID}) is added.";
    else
      echo "[ERROR] User ${USRNM}(GID=${USRID}) is not able to add.";
      exit 1;
    fi
  else
    echo "[SKIP] ${USRNM} is already exists.";
  fi

done