$➔ for d in `find . -name "*.jar"`; do echo ${d##*/}; done | sort | uniq -c | tee jars.in.javaee.list.of.dupes.with.counts.txt

      1 a.jar
      1 antlr.jar
      1 batchlib.jar
      1 cdianimals.jar
      1 cdiastro.jar
      1 cdibirds.jar
      1 cdifish.jar
      1 cdi-simple.jar
      2 cdi-solder-birds.jar
      2 example.jar
      1 jbide2550.jar
      1 jhighlight-1.0.jar
      1 openon_test.jar
      1 seam-international-empty.jar
      1 seam-solder-test.jar
      1 some-weld.jar
      1 xmlunit1.0.jar