You can view the version by checking the file /usr/local/cwpsrv/htdocs/resources/admin/include/version.php
[root@server]# cat /usr/local/cwpsrv/htdocs/resources/admin/include/version.php
<?php
$webpanel_version = "0.9.8.153";
?>
If you just want version number
grep version /usr/local/cwpsrv/htdocs/resources/admin/include/version.php| awk '{print $NF}'| tr -d '"|;'
Example Output:
[root@server]# grep version /usr/local/cwpsrv/htdocs/resources/admin/include/version.php| awk '{print $NF}'| tr -d '"|;'
0.9.8.153
This may or may not work in future releases.