diff --git a/compatibility.sh b/compatibility.sh
index 361cc47..9565876 100755
--- a/compatibility.sh
+++ b/compatibility.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -e
 # $File: compatibility.sh
-# $Date: Sun Feb 01 17:22:34 2015 +0800
+# $Date: Tue Jun 16 22:23:36 2015 +0800
 # Author: Vury Leo <i[at]vuryleo[dot]com>
 
 realpath() {
diff --git a/decrypt_db.sh b/decrypt-db.sh
similarity index 96%
rename from decrypt_db.sh
rename to decrypt-db.sh
index 9db2e41..a8f4cba 100755
--- a/decrypt_db.sh
+++ b/decrypt-db.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -e
 # File: decrypt_db.sh
-# Date: Tue Jun 16 22:18:40 2015 +0800
+# Date: Tue Jun 16 22:23:13 2015 +0800
 # Author: Yuxin Wu <ppwwyyxxc@gmail.com>
 
 source compatibility.sh
diff --git a/dump_html.py b/dump-html.py
similarity index 100%
rename from dump_html.py
rename to dump-html.py
diff --git a/dump_msg.py b/dump-msg.py
similarity index 100%
rename from dump_msg.py
rename to dump-msg.py
diff --git a/plot_num_msg_by_time.py b/plot-num-msg-by-time.py
similarity index 100%
rename from plot_num_msg_by_time.py
rename to plot-num-msg-by-time.py