cPanel password of a domain can be changed from command line using cPanel script.1. Login to your server as root via SSH.
2. Execute the following script for random cPanel password
/scripts/chpass [username]
cpanel generate the random password for your cPanel account.
3. Execute the following script for your password from the command line.
/scripts/chpass [username] [password]
Replace [UserName] with the cPanel user name of the domain & [password] with the new password.
3. Synchronizing the new password with FTP password;
In cPanel/WHM servers, whenever a new account is created in WHM, by default a FTP account is created. The cPanel password and FTP password are synchronized. Use the following command to synchronize the new password with FTP password.
/scripts/ftpupdate