--- /dev/null
+if [ "$#" != "2" ]
+then
+ echo "Usage $0 commitId full_path_to_the_source_file"
+ exit
+fi
+fileName=$(basename $2)
+dirName=$(dirname $2)
+commitId=$1
+cd $dirName
+if [ -e "$2" ]
+then
+ rm $2 2>/dev/null
+fi
+git checkout $commitId $fileName
+cat $fileName