awk: how to delete first and last value on entire column

Question

I have a data that is comprised of several columns. On one column I would like to delete two commas that are each located in beginning and the end of entire column. My data looks something like this:

a    ,3,4,3,2,
b    ,3,4,5,1,
c    ,1,5,2,4,5,
d    ,3,6,24,62,3,54,

Can someone teach me how to delete the first and last commas on this data? I would appreciate it.

Answer 1

$ awk '{gsub(/^,|,$/,"",$NF)}1' file
a 3,4,3,2
b 3,4,5,1
c 1,5,2,4,5
d 3,6,24,62,3,54