Since you didn't specify it in the print command, MATLAB will print the current figure each time. In your case, since you have 6 figures, you need to tell MATLAB which one you want to print.
You could maintain a list of the 6 figures you create and then use that list in the call to print:
figs(1) = figure; % create first figure
plot...% plot your data
figs(2) = figure;
...
% create the rest of your figures, storing each into figs
...
Or, if you always want to print all of the figures that you have created, you can ask MATLAB to give you the list:
figs = findobj(0, 'type', 'figure');
Then, print the figures. In the loop below I'm using sprintf() to "build" the output filename by * starting with a common basename: 'file', * adding the loop index, * and appending '.eps' to the end, so we get file1.eps, file2.eps etc:
for k=1:length(figs)
% print each figure in figs to a separate .eps file
print(figs(k), '-depsc', sprintf('file%d.eps', k))
end
