add user bash code example

Example 1: how to make new user linux termil

sudo useradd -m username

#set user password
sudo passwd username

#add user to sudoers [DANGEROUS]
usermod -aG sudo username

Example 2: how to add user from bash in mac

dscl . -create /Users/joeadmin
dscl . -create /Users/joeadmin UserShell /bin/bash
dscl . -create /Users/joeadmin RealName "Joe Admin" 
dscl . -create /Users/joeadmin UniqueID "510"
dscl . -create /Users/joeadmin PrimaryGroupID 20
dscl . -create /Users/joeadmin NFSHomeDirectory /Users/joeadmin
dscl . -passwd /Users/joeadmin password 

dscl . -append /Groups/admin GroupMembership joeadmin

Example 3: create user in linux

useradd [OPTIONS] USERNAME