After some searching on the web, I found this script:
#!/bin/bash
# svn-ignore - tell Subversion to ignore a file in certain operations.
# See: http://svn-ignore.notlong.com [svnbook.red-bean.com]
test -z "$1" && echo "Usage: $0 FILENAME" && exit -1
for fullname in "$@"
do
dirname=$(dirname "$fullname")
filename=$(basename "$fullname")
(svn propget svn:ignore "$dirname" | egrep -v '^$';
echo "$filename") >/tmp/svn-ignore.$$
svn propset svn:ignore -F /tmp/svn-ignore.$$ "$dirname"
rm /tmp/svn-ignore.$$
done
That coupled with:
for i in `svn status` ; do if [ $i != "?" ]; then echo $i ; svn-ignore $i ; fi ; done
really saved me a lot of work.