diff --git a/scripts/add_header.sh b/scripts/add_header.sh
deleted file mode 100755
index e27b7a8..0000000
--- a/scripts/add_header.sh
+++ /dev/null
@@ -1 +0,0 @@
-sed -i '1i/************************************\n * file enc : utf8\n * author   : wuyanyi09@gmail.com\n************************************/' ../src/*.h ../src/*.cpp ../src/*.tcc 
diff --git a/scripts/check_dict.py b/scripts/check_dict.py
deleted file mode 100755
index ac528f7..0000000
--- a/scripts/check_dict.py
+++ /dev/null
@@ -1,29 +0,0 @@
-#!/usr/bin/python
-
-import sys
-
-if len(sys.argv) == 1:
-    print "usage : %s dict_file1 dict_file2 ..."
-    exit(1)
-
-d = {}
-
-for fname in sys.argv[1:]:
-    with open(fname, "r") as fin:
-        for i, line in enumerate(fin):
-            try:
-                word, cnt, tag = line.strip().split(" ")
-                if word in d:
-                    print "error file[%s] line[%s] : %s" %(fname, i, line)
-                    exit(1)
-                else:
-                    d[word] = True
-                
-                if 0 >= int(cnt) :
-                    print "error file[%s] line[%s] : %s" %(fname, i, line)
-                    exit(1)
-            except Exception as err:
-                print "error file[%s] line[%s] : %s" %(fname, i, line)
-                exit(1)
-
-print "OK"
diff --git a/scripts/filter_dict.py b/scripts/filter_dict.py
deleted file mode 100755
index 8cb247a..0000000
--- a/scripts/filter_dict.py
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/python
-
-import sys
-
-if len(sys.argv) == 1:
-    print "usage : %s dict_file_path"
-    exit(1)
-
-d = {}
-with open(sys.argv[1], "r") as fin:
-    for i, line in enumerate(fin):
-        word, cnt, tag = line.strip().split(" ")
-        if word in d:
-            #print "error file[%s] line[%s] : %s" %(fname, i, line)
-            #exit(1)
-            continue
-        else:
-            d[word] = True
-        if 0 >= int(cnt) :
-            continue
-        
-        print line.strip()
-
diff --git a/scripts/iconv_dict.py b/scripts/iconv_dict.py
deleted file mode 100755
index 483ecec..0000000
--- a/scripts/iconv_dict.py
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/python
-
-import sys
-
-if len(sys.argv) != 4:
-    print "usage : %s from_enc to_enc dict_file_path \nexample: %s gbk utf-8 fname" %(__file__, __file__)
-    exit(1)
-
-with open(sys.argv[3], "r") as fin:
-    for i, line in enumerate(fin):
-        try:
-            print line.strip().decode(sys.argv[1]).encode(sys.argv[2])
-        except Exception as err:
-            print >> sys.stderr, err
-