change ubuntu password code example

Example 1: change password linux

passwd userNameHere

Example 2: add password to user ubuntu

passwd {username}

Example 3: change password from command line in ubuntu

sudo passwd <user>

Example 4: change linux user password

#if you dont't have your root password => then don't use sudo command

# passwd <username>
Current password:
New password:
Retype new password:
passwd: password updated successfully

Example 5: change password ubuntu 20.04

open your terminal
ctrl-alt-t

passwd username

If you have admin password you can change all passwd of users 
su -
passwd username