The SEQ command returns the corresponding reference sequence read for each row of the output based on the position column.
Other columns can be used instead of the position column (#2) using the
-c option. The length of the flanking sequence (the number of bases on either side of the position defaults to 10, but can be changed using the
gor file | SEQ [ attributes ]
The columns for which the reference sequence is found. By default, only column number 2 is used.
The length of the flanking sequence, e.g. total seq. length is equal to 2*l + 1.