Identifying the file system for a EC2 volume

$ sudo file -s /dev/nvme?n*
/dev/nvme0n1:     x86 boot sector; partition 1: ID=0xee, starthead 0, startsector 1, 58720255 sectors, extended partition table (last)\011, code offset 0x63
/dev/nvme0n1p1:   SGI XFS filesystem data (blksz 4096, inosz 512, v2 dirs)
/dev/nvme0n1p128: data

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