I like using pyx (installed by XML::PYX) for that kind of quick "grab info from a file":

pyx file.xml | perl -ln -e'if( /^\((.*)$/) { $tags{$1}++; } \
                             END { print foreach (sort keys %tags);\
                                   print scalar(keys %tags), " tags in
+ the files"; }'

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In reply to Re: Count number of unique tags in XML files by mirod
in thread Count number of unique tags in XML files by leriksen

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