diff --git a/Firmware/le.sh b/Firmware/le.sh
new file mode 100644
index 000000000..57646735e
--- /dev/null
+++ b/Firmware/le.sh
@@ -0,0 +1,29 @@
+# line ending management script
+# CRLF - windows default ('\r\n')
+# LF   - unix default ('\n')
+# arguments:
+# ?crlf - print all .cpp and .h files with CRLF line endings
+# ?lf   - print all .cpp and .h files with LF line endings
+# crlf - replace line endings in all .cpp and .h files to CRLF
+# lf   - replace line endings in all .cpp and .h files to LF
+
+if [ "$1" == "?crlf" ] || [ $# -eq 0 ]; then
+ echo 'cpp and h files with CRLF line endings:'
+ find {*.cpp,*.h} -not -type d -exec file "{}" ";" | grep CRLF | sed 's/:.*//g'
+elif [ "$1" == "?lf" ]; then
+ echo 'cpp and h files with LF line endings:'
+ find {*.cpp,*.h} -not -type d -exec file "{}" ";" | grep -v CRLF | sed 's/:.*//g'
+fi
+if [ "$1" == "crlf" ]; then
+ echo 'replacing LF with CRLF in all cpp and h files:'
+ find {*.cpp,*.h} -not -type d -exec file "{}" ";" | grep -v CRLF | sed 's/:.*//g' | while read fn; do
+  echo "$fn"
+  sed -i 's/$/\r/g' $fn
+ done
+elif [ "$1" == "lf" ]; then
+ echo 'replacing CRLF with LF in all cpp and h files:'
+ find {*.cpp,*.h} -not -type d -exec file "{}" ";" | grep CRLF | sed 's/:.*//g' | while read fn; do
+  echo "$fn"
+  sed -i 's/\r\n/\n/g' $fn
+ done
+fi