version: 1.00 20160207

Usage: sg_read_attr [--cache] [--element=EA] [--enumerate] [--filter=FL] [--first=FAI] [--help] [--hex] [--in=FN] [--lvn-LVN] [--maxlen=LEN] [--partition=PN] [--quiet] [--raw] [--readonly] [--sa=SA] [--verbose] [--version] DEVICE where: --cache|-c set CACHE bit in cdn (def: clear) --enumerate|-e enumerate known attributes and service actions --element=EA|-E EA EA is placed in 'element address' field in cdb [SMC-3] (def: 0) --filter=FL|-f FL FL is parameter code to match (def: -1 -> all) --first=FAI|-F FAI FAI is placed in 'first attribute identifier' field in cdb (def: 0) --help|-h print out usage message --hex|-H output response in hexadecimal; used twice shows decoded values in hex --in=FN|-i FN FN is a filename containing attribute values in ASCII hex or binary if --raw also given --lvn=LVN|-l LVN logical volume number (LVN) (def:0) --maxlen=LEN|-m LEN max response length (allocation length in cdb) (def: 0 -> 8192 bytes) --partition=PN|-p PN partition number (PN) (def:0) --quiet|-q reduce the amount of output, can use more than once --raw|-r output response in binary --readonly|-R open DEVICE read-only (def: read-write) --sa=SA|-s SA SA is service action (def: 0) --verbose|-v increase verbosity --version|-V print version string and exit Performs a SCSI READ ATTRIBUTE command. It is typically used on tape systems.