The very first post from the link above worked like a charm for us. Please find someone who can show you how to do shell scripting and Crontab if you don't know how to do it.
[root@xxxxx:/S1-green-P:Active:In Sync] config ls
aaa bigpipe net-snmp
big3d customization ntp.conf
BigDB.dat daemon.conf partitions
bigip dashboard partitions.bak
bigip_base_bkup eav profile_base.conf
bigip_base.conf eventd.xml rndc.key
bigip_base.conf.bak f5-rest-device-id snmp
bigip.conf failover ssh
bigip.conf.bak filestore ssl
bigip.license ge1.cap startup
bigip.license.chs102093s ge.cap statsd.conf
bigip.license.chs102104s gtm tmp
bigip.license.old httpd user_alert.conf
bigip_script.conf lcd vartempdatapower.cap
bigip_script.conf.bak lost+found vartmpdatapower1.cap
bigip_user.conf low_profile_base.conf vartmpdatapower.cap
bigip_user.conf.bak monitors wa
[root@xxxxx:/S1-green-P:Active:In Sync] config nano cron-backup
[root@xxxxx:/S1-green-P:Active:In Sync] config nano startup
[root@xxxxx:/S1-green-P:Active:In Sync] config chmod +x /config/cron-backup
[root@xxxxx:/S1-green-P:Active:In Sync] config ln -s /config/cron-backup /etc/cron.daily/cron-backup
[root@xxxxx:/S1-green-P:Active:In Sync] config ls
aaa bigip_script.conf filestore profile_base.conf
big3d bigip_script.conf.bak ge1.cap rndc.key
BigDB.dat bigip_user.conf ge.cap snmp
bigip bigip_user.conf.bak gtm ssh
bigip_base_bkup bigpipe httpd ssl
bigip_base.conf cron-backup lcd startup
bigip_base.conf.bak customization lost+found statsd.conf
bigip.conf daemon.conf low_profile_base.conf tmp
bigip.conf.bak dashboard monitors user_alert.conf
bigip.license eav net-snmp vartempdatapower.cap
bigip.license.chs102093s eventd.xml ntp.conf vartmpdatapower1.cap
bigip.license.chs102104s f5-rest-device-id partitions vartmpdatapower.cap
bigip.license.old failover partitions.bak wa
[root@xxxxx:/S1-green-P:Active:In Sync] config ./cron-backup
Saving active configuration...
/var/local/ucs/backup_xxxxx_20160429.ucs is saved.
/usr/bin/find: missing argument to `-exec'
These are the steps that I followed but I am really not good at explaining them as my colleague helped me execute it. I hope this will give you some idea at least :)