Add-Delete_user

#!/bin/bash

# This script enables you to add or remove user

ARCHIEVE_DIR='/archieve'
#CASE="${1}"
 
	       
#case ${1} in
#  ADD) adduser "$@" ;;
#  DEL) deleteuser "$@" ;;
#  ?) echo " usage ${0} add USER_NAME [FULL NAME] nothing" ;;
#esac  

addo(){
#USER_NAME="${2}"
#shift
#COMMENT=${@} # FULL NAME

# ADDING USER
echo "adding user with username ${USER_NAME}" 
useradd -m "${USER_NAME}"
if [ "${?}" -ne 0 ]
then
   echo "username can not be created try again with a differnt one" >&2
   exit 1
fi

# CREATING SYSTEM GENERATED PASSWORD
PASSWORD=$( date +%s%N$RANDOM | sha256sum | head -c32 )
SPECIAL_CHARACTER_1=$(echo '@!#%^^$*()+;.><' |fold -w1 | shuf | head -c1)
SPECIAL_CHARACTER_2=$(echo '@!#%^^$*()+;.><' |fold -w1 | shuf | head -c1)
PASSWORD="${SPECIAL_CHARACTER_2}${PASSWORD}${SPECIAL_CHARACTER_1}"
echo "${PASSWORD}" | passwd --stdin "${USER_NAME}"
# Check to see if the passwd comamnd succeded 
if [ $? -ne 0 ]
then 
   echo 'the password could not be set' >&2
   exit 1
fi

# force passwrd change on the first login 
passwd -e "${USER_NAME}"

# Display the username, password, and the host where the user was created.
echo # leaves a blank space
echo 'username'
echo "${USER_NAME}"
echo
echo 'password'
echo "${PASSWORD}"
exit 0
}

delo()
{
#USER_NAME=${2}
# DELETING USER
read -p "do you want to remove the home directory(y/n)" REMOVE
if [ "${REMOVE}" = 'y' ]
  then 
     echo 'deleting user along with home directory'
     userdel -r "${USER_NAME}"
     if [ "${?}" -ne 0 ]
     then 
      echo "user ${USER_NAME} can not be deleted " >&2
          exit 1
     fi
else 
    userdel -r "${USER_NAME}"
    if [ $? != 0 ]
    then 
      echo "user ${USER_NAME} can not be deleted " >&2
          exit 1
     fi
fi
 exit 0       
}

USER_NAME=${2}
if [[ "${1}" = 'add' ]]
then 
    echo $#  
   addo
elif [[ "${1}" = 'delete' ]]   
then
   delo
else
   echo " usage ${0} add USER_NAME [FULL NAME] nothing"
exit 1   
fi 



exit 0