SlackAcc

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#!/bin/bash
#----------HEADER--------------------------------------------------|
#AUTHOR:
# Jefferson Rocha <lrcjefferson@gmail.com>
#
#Program:
# Simple program to Create a USER with useradd and box's dialog.
#------------------------------------------------------------------|

#-------Variables
check_dialog=$(which dialog 2>&-)

#-------FUNCTIONS
status(){
  case $? in
    1)
      user=${user,,}   # lower user, not error.
      pass=$(
      dialog --stdout \
             --insecure \
             --passwordbox "Say your Password!" 0 0)
        [ "$?" = "0" ] && useradd -p "$pass" -m -c "$comment" "$user" && \
        dialog --title "Sucess." --sleep 2 --infobox "User created." 0 0 \
        && exit 1 || \
       dialog --title "Error." --sleep 2 --infobox "Error :(" 0 0 ;;
  esac
}


#-------Inicializing
# Root?
[ $(echo $UID) -ne "0" ] && \
dialog --title "Root now." --infobox "NEED ROOT." 0 0 && exit 1

# Dialog exist in system?
[ ! -e "$check_dialog" ] && echo -e "\033[31;1mInstall Dialog.\033[m" && exit 1



#--------Here start.
while :; do
  { read user; read pass; read comment; read shell; } \
  < <(dialog --stdout       \
             --no-cancel    \
             --backtitle "Slackware Create User" --title "Create a New User" \
             --no-shadow    \
             --form "Users" \
             0 0 0          \
             "User:"     1 1 ""          1 10 25 25 \
             "Comment:"  2 1 ""          2 10 25 25 )
status   # Function call
done      # END LOOP WHILE