1 files changed, 4 insertions, 2 deletions

diff --git a/makecolumns.sh b/makecolumns.sh
index 0eaf954..8df1c25 100755
--- a/makecolumns.sh
+++ b/makecolumns.sh
@@ -241,7 +241,8 @@ handle_format_version_3() {
     [ -f 15_unknown ] && mv 15_unknown 15_Webadresse
 
     printf "Normalizing flags ... "
-    sed -i '' -e s:^1$:00:g -e s:^3$:01:g -e s:^2$:02:g 01_Flags
+    sed -i.bak -e s:^1$:00:g -e s:^3$:01:g -e s:^2$:02:g 01_Flags
+    rm 01_Flags.bak
     printf "done.\n"
 
     printf "Normalizing zusaetze ... "
@@ -369,7 +370,8 @@ tidy_streetnames () {
 
   # Replace any dots at end of line by a single one
   # finish any str abbreviation without a period with a period
-  sed -Ei '' 's/\.+/./g;s/(S|s)tr( |:)?$/\1tr./' ${streets}
+  sed -E -i.bak 's/\.+/./g;s/(S|s)tr( |:)?$/\1tr./' ${streets}
+  rm "${streets}".bak
 }
 
 # After function definitions, main() can use them