You need to pass the values on drill down to next dashboard so they are preserved. Also should name your time range token as follows:
<input id="time_id" type="time">
<default>Last 24 hours</default>
</input>
On drill down pass values as
search?q= sourcetype=bash_history | search $category$ $pci_domain$ host="$row.host$" | table _time, host, bash_command, host_bunit, host_ip, host_category, host_pci_domain, host_city, host_country&earliest=$earliest$&latest=$latest$&auto_pause=$auto_pause$
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