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/usr/lib/x86_64-linux-gnu/lapack/dbb.in is in liblapack-test 3.7.1-4ubuntu1.

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DBB:  Data file for testing banded Singular Value Decomposition routines
20                                Number of values of M
0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 10  10  16  16    Values of M
0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 10  16  10  16    Values of N
5                                 Number of values of K
0 1 2 3 16                        Values of K (band width)
2                                 Number of values of NRHS
1 2                               Values of NRHS
20.0                              Threshold value
F                                 Put T to test the error exits
1                                 Code to interpret the seed
DBB 15