I have several files in a directory that look like this:

Code:

jacket-n	r
potential-n	-
outcome-n	f
reputation-n	b

I want to replace the characters in the second column with certain numbers. For instance, I want the letters 'f', 'r' and 'b' in the second column to replaced with 0 and I want the symbol '-' in the second column to be replaced with 1.

The result would be this:

Code:

jacket-n	0
potential-n	1
outcome-n	0
reputation-n	0

I have tried the following sed:

Code:

sed -i.bak -e 's/-/1/' -e 's/b/0' -e 's/f/' -e 's/r/0' input

but it does not work.
Any suggestions?