Backup and synchronization - In case of a file created in bash

You can use sync command in tmsh to sync configuration to secondary or sync group

run /cm config-sync <sync_direction> <sync_group>

But why you need to sync backup file or created file to secondary, it will not sync

Please find the details it will not sync.

Local Traffic Manager (LTM) Logs: Logs are local to each device and are not synchronized.

Local Files: Files that are specific to a device, like custom scripts or logs, are not synced.

System Settings: Certain system-specific settings, such as device-specific licenses or certain system-level configurations, are not part of the sync.

External Configuration Files: Files or settings stored outside the F5 system, such as external databases or external scripts, are not synchronized.

Session States: Current session data or live traffic states are not synced, as these are dynamically created and managed.

Adding more information https://my.f5.com/manage/s/article/K21259300