rdseed is a command line program driven in either question/answer mode or by using command line options.
Key rdseed Options
-f Specify the input SEED volume -d Dump/write data -o Output format, 1-5 (default is SAC) -g Specify alternate SEED headers -R Write response information as RESP -p Write sensor response as SAC P&Zs -S Write a station summary: "rdseed.stations" -c Print a Table of Contents summary -s Print SEED volume as indexed ASCII