create user on mac os x with dscl command

dscl_create_user

#!/usr/bin/env bash


# SOURCES:
# https://gist.github.com/rubytester/7330557
# http://stackoverflow.com/a/1923893

# Exit upon failed command
# set -e

# Logs
logTime=$(date +%Y-%m-%d:%H:%M:%S)
resetLog="/tmp/pkg_install_$logTime.log"
exec &> >(tee -a "$resetLog")

# Current user
loggedInUser=$(ls -l /dev/console | cut -d " " -f 4)

# Working directory
scriptDir=$(cd "$(dirname "$0")" && pwd)

# Check for root privileges
if [ "$(whoami)" != "root" ]; then
    echo "Sorry, you need super user privileges to run this script."
    exit 1
fi

# INPUT
# uname="tmuxpair"

# Accept user input while masking what is entered
echo "Enter Your Username:"
read uname
unset password
prompt="Enter Password:"
while IFS= read -p "$prompt" -r -s -n 1 char
do
    if [[ $char == $'\0' ]]
    then
        break
    fi
    prompt='*'
    password+="$char"
done

# COMPUTE
latestID=$(dscl . -list /Users UniqueID | awk '{print $2}' | sort -ug | tail -1)
userID=$((latestID+1))

# CREATE with sudo
dscl . -create /Users/$uname
dscl . -create /Users/$uname UserShell /bin/bash
dscl . -create /Users/$uname RealName $uname
dscl . -create /Users/$uname UniqueID "$userID"
dscl . -create /Users/$uname PrimaryGroupID 20 # admin group
dscl . -create /Users/$uname NFSHomeDirectory /Users/$uname
dscl . -passwd /Users/$uname $password