--- /dev/null
+#! /bin/sh
+if [[ $1 =~ ^- ]];then
+ WHEN=now
+else
+ WHEN="$1"
+ shift
+fi
+TODAY=`date -d "$WHEN" +%Y%m%d`
+YESTERDAY=`date -d "$TODAY - 1 day" +%Y%m%d`
+cd $HOME/hammock
+for THIS in ${TODAY}Build-gdbcvs*;do
+ PREV=$YESTERDAY`echo $THIS|sed 's/^........//'`
+ diffgdbdir "$@" $PREV $THIS
+done
+echo diffgdbday done