diff --git a/dev/deduplicatefilelinesrecursively.sh b/dev/deduplicatefilelinesrecursively.sh
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+#!/bin/bash
+# Recursively deduplicate file lines on a per file basis
+# Useful to deduplicate language files
+#
+# Needs awk 4.0 for the inplace fixing command
+#
+# Raphaël Doursenaud - rdoursenaud@gpcsolutions.fr
+
+# Syntax
+if [ "x$1" != "xlist" -a "x$1" != "xfix" ]
+then
+	echo "Usage: deduplicatefilelinesrecursively.sh [list|fix]"
+fi
+
+# To detect
+if [ "x$1" = "xlist" ]
+then
+    for file in `find . -type f`
+    do
+        if [ `sort "$file" | uniq -d | wc -l` -gt 0 ]
+        then
+            echo "$file"
+        fi
+    done
+fi
+
+# To fix
+if [ "x$1" = "xfix" ]
+then
+    for file in `find . -type f`
+    do
+    	awk -i inplace ' !x[$0]++' "$file"
+    done;
+fi