smbpasswd
Add/remove a Samba user or change its password. tldr-pages
On Linux
Linux
Add/remove a Samba user or change its password. Samba users must have an existing local Unix account.
Change the current user's SMB password
smbpasswdIdentifyAdd a specified user to Samba and set password (user should already exist in system)
sudo smbpasswd -a usernameIdentifyModify an existing Samba user's password
sudo smbpasswd usernameIdentifyDelete a Samba user (use pdbedit instead if the Unix account has been deleted)
sudo smbpasswd -x usernameIdentify