Having a file of the following contents:
I seek to get a file equal to the original but lacking a n-th column like, for n = 2 (or may it be 3)
or, for n = 0 (or may it be 1)
A real file can be gigabytes long having tens thousands columns.
As always in such cases, I suspect command line magicians can offer an elegant solution... :-)
In my actual real case I need to drop 2 first columns, which can be done by dropping a first column twice in a sequence, but I suppose it would be more interesting to generalise a bit.