diff --git a/utils/llvmdo b/utils/llvmdo
new file mode 100755
index 00000000000..b94328e75a7
--- /dev/null
+++ b/utils/llvmdo
@@ -0,0 +1,31 @@
+#!/bin/sh
+# This is useful because it prints out all of the source files.  Useful for
+# greps.
+PROGRAM=`which $1`
+if [ ! -x "$PROGRAM" ]; then
+  echo "Can't execute $1"
+  exit 1
+fi
+shift;
+ARGS="$*"
+TOPDIR=`pwd | sed -e 's#(.*/llvm).*#$1#'`
+if test -d "$TOPDIR" ; then
+  cd $TOPDIR
+  echo $TOPDIR
+  find docs include lib tools utils projects -type f \
+      \( -path '*/doxygen/*' -o -path '*/Burg/*' \) -prune -o \
+      -name '*.[cdhyl]*' \
+      \! -name '*~' \
+      \! -name '#*' \
+      \! -name '*.ll' \
+      \! -name '*.d' \
+      \! -name '*.dir' \
+      \! -name 'Sparc.burm.c' \
+      \! -name 'llvmAsmParser.cpp' \
+      \! -name 'llvmAsmParser.h' \
+      \! -name 'FileParser.cpp' \
+      \! -name 'FileParser.h' \
+      -exec $PROGRAM $ARGS {} \;
+else
+  echo "Can't find LLVM top directory in $TOPDIR"
+fi