Hello,
You can specify that NULL be the field terminator with "\0:
http://manuals.sybase.com/onlinebooks/group-as/asg1251e/utility/@Gener..._BookTe
For example:
% cat bcp.fmt
10.0
9
1 SYBCHAR 0 11 "\0" 1 au_id
2 SYBCHAR 0 40 "\0" 2 au_lname
3 SYBCHAR 0 20 "\0" 3 au_fname
4 SYBCHAR 0 12 "\0" 4 phone
5 SYBCHAR 1 40 "\0" 5 address
6 SYBCHAR 1 20 "\0" 6 city
7 SYBCHAR 1 2 "\0" 7 state
8 SYBCHAR 1 12 "\0" 8 country
9 SYBCHAR 1 10 "\0" 9 postalcode