How to package/ backup a CPanel account from the command line
This can be done by running the /scripts/pkgacct script from the cli. Running this command will create a cpmove archive which can be used to restore on another cpanel server.
/scripts/pkgacct [arguments] username destination
/scripts/pkgacct accountusername /tmp
The above command will create a full backup and store the archive in the tmp directory.