Log changed SVN files during a time period

ModifiedSVNFiles.sh

#!/bin/bash

## To get the list of files modified during a certain periodin SVN
## original syntax: svn diff <url> --summarize -r {2012-03-24}:{2012-06-22} > ~/Documents/log.txt
## e.g. ./ThisFilesName <url> {date1}:{date2}


echo "Getting modified files during" $2 "to" $3 "in" $1 "..."
svn diff $1 --summarize -r {$2}:{$3} > log_$2_$3.txt