cPanel password of a domain can be changed from command line using cPanel script. Given below are the steps to do the same.
1. Login to your server as root via SSH.
2. Execute the following script from the command line.
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/scripts/chpass [username] [password]
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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.
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/scripts/ftpupdate
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