Working with sed

[Matthew A Henry]

Hi,

I'm writing a script that uses sed, and am having trouble with one
part.  I have a file that contains typical unix paths, one per
line, and would like to remove everything after the last forward 
slash (/).  In other words I would like the string:

	/aaa/bbb/ccc/ddd/eee

to be changed to:

	/aaa/bbb/ccc/ddd

Is this possible with sed?  Any ideas e-mailed or posted would 
be greatly appreciated.

Thanks,

Matt Henry  NR3M
(412) 443-5071
...![allegra, bellcore, cadre, idis, psuvax1]!pitt!cisunx!nr3m
NR3M at PITTUNIX
nr3m at unix.cis.pitt.edu