The command to be used in the cronjob is determined by the following factors:
If your hosting supports wget. Wget is a command line tool to perform web requests and not all hosting companies supports this.
If your hosting only supports PHP cli.
WGET
If your hosting provider supports wget, the simplest way to setup the cronjob would be:
/bin/wget -O /dev/null "https://yoursite.com/index.php?option=com_easyblog&task=cron"
You need to check with your hosting company for the correct path to wget /bin/wget
The URL https://yoursite.com/index.php?option=com_easyblog&task=cron is dependent if you have enabled the Secure Cronjob Key in EasyBlog.
PHP CLI
You will need to edit the file /path/to/joomla/components/com_easyblog/cron.php locate the following block of codes:
##################################################
######## Configuration options.
##################################################
// This should not contain http:// or https://
$host = 'site.com';
##################################################
Replace site.com with the domain name of your site. Once you have modified the file, add the following command for your cronjob.
/path/to/php -q "/path/to/joomla/components/com_easyblog/cron.php"