Sorting a list of files

Question

Maybe am missing something but how do i sort in a descending order a list with this naming

B7
B40
B41
B42
B8
B43
B20
B45
B53
B47
B48
B5
B6

sort -n does not sort the way i would like

B5
B6
B7

and so on

Answer 1

Try this:

sort -k1.2n

This sorts by (the data starting at) the second char (2) of the first column (1), assuming numerical data (n).