diff --git a/htdocs/sql/lang/check_lang.sh b/htdocs/sql/lang/check_lang.sh
new file mode 100755
--- /dev/null
+++ b/htdocs/sql/lang/check_lang.sh
@@ -0,0 +1,62 @@
+#!/bin/sh
+# $Id: check_lang.sh 9393 2006-09-08 11:28:23Z lem9 $
+##
+# Shell script to check that all language files are syncronized
+# Catches duplicate/missing strings
+#
+# Robin Johnson <robbat2@users.sourceforge.net>
+# August 9, 2002
+##
+
+MASTER="english-iso-8859-1.inc.php"
+TMPDIR="tmp-check"
+FILEPAT="*.inc.php"
+STRINGMATCH='^[[:space:]]*\$[[:alnum:]_]+[[:blank:]]+='
+IGNOREMATCH='strEncto|strKanjiEncodConvert|strXkana|allow_recoding|doc_lang'
+
+if [ "`which diffstat`" = "" ] ; then
+    echo 'You need diffstat to use this!'
+    exit 1
+fi
+
+rm -rf $TMPDIR
+mkdir -p $TMPDIR
+
+# Build the list of variables in each file
+echo "Building data"
+for f in $FILEPAT;
+do
+    awk "/$STRINGMATCH/ && ! /$IGNOREMATCH/ { print \$1 }" $f | sort > $TMPDIR/$f
+done
+
+
+# Build the diff files used for checking
+# And if there are no differences, delete the empty files
+echo "Comparing data"
+for f in $FILEPAT;
+do
+    if [ ! $MASTER = $f ]; then
+        if diff -u $TMPDIR/$MASTER $TMPDIR/$f >$TMPDIR/$f.diff ; then
+            rm -f $TMPDIR/$f.diff $TMPDIR/$f
+        fi
+    fi
+done
+
+# Cleanup
+rm -f $TMPDIR/$MASTER
+
+# Build the nice difference table
+echo "Differences"
+diffstat -f 0 $TMPDIR/*.diff >$TMPDIR/diffstat 2>/dev/null
+echo "Dupe	Miss	Filename"
+head -n -1 $TMPDIR/diffstat | \
+while read filename sep change add plus sub minus edits exclaim; 
+do 
+    echo "$add	$sub	$filename"; 
+done
+
+echo
+echo "Dupe = Duplicate Variables"
+echo "Miss = Missing Variables"
+echo "For exact problem listings, look in the $TMPDIR/ directory"
+echo "Please remember to remove '$TMPDIR/' once you are done"