$ svn pg svn:ignore .
file1
file2
file3
$ svn pe svn:ignore .
// manually add file4 in default text editor
How to add file4
to svn:ignore
using bash in one line command?
Surely not elegant but it works:
svn propget svn:ignore . > /tmp/svnproperties && echo "file4" >> /tmp/svnproperties && svn propset svn:ignore . --file /tmp/svnproperties