Utility to create an index of all JAR files recursively

jarindex.sh

$ cat ~/bin/jarindex 
#!/bin/bash

if [ -x /opt/csw/bin/gawk ]
then
  awk=/opt/csw/bin/gawk
else
  awk=awk
fi

if [ ! -x `which awk` ]
then
  echo "Unable to execute awk: $awk" > /dev/stderr
  exit 1
fi

if [ -r jarindex ]
then
  cp jarindex jarindex.tmp
else
  rm -f jarindex.tmp
fi

for jar in `find . -name '*.jar'|sort`
do
  if [ jarindex -ot "$jar" ]
  then
#    continue
#  else
    echo Indexing: $jar
    jar ft $jar | $awk -v jar=$jar '{printf("%s:%s\n", jar, $1)}' >> jarindex.tmp
  fi
done

[ -r jarindex.tmp ] && mv jarindex.tmp jarindex