To create a new user with sudo permission in Kali Linux

Create new user in Linux

# Add user.
useradd -m username
# -m creates a home directory for the user.

# Set Password.
passwd username

# Set user group to sudo.
usermod -a -G sudo username
# -a option to add and ‘-G sudo’ means to add the user to the sudo group.

chsh -s /bin/bash username
# chsh command is used to change the login shell for a user.