# apt install jq
$ zabbix_get -s gate -k vfs.fs.discovery | jq
$ zabbix_get -s gate -k vfs.fs.discovery | jq '.[] | ."{#FSTYPE}"'
$ zabbix_get -s gate -k vfs.fs.discovery | jq '.[] | select(."{#FSTYPE}"=="ext4")'
# docker volume inspect root_postgres_data | jq '.[] | ."Mountpoint"'