diff --git a/cheat b/cheat
index 6a054e3..0af41db 100755
--- a/cheat
+++ b/cheat
@@ -41,7 +41,9 @@ def cheat_files(cheat_directories):
     for cheat_dir in reversed(cheat_directories):
         cheats.update(dict([(cheat, cheat_dir)
                             for cheat in os.listdir(cheat_dir)
-                            if not cheat.startswith('.')
+                            if not cheat.endswith('md') 
+                            and not cheat.startswith('.')
+                            and not cheat.startswith('LICENSE')
                             and not cheat.startswith('__')]))
     return cheats
 
@@ -82,6 +84,7 @@ def main():
     # if it does not, say so
     else:
         print 'No cheatsheet found for %s.' % keyphrase
+        
 
 
 def pretty_print(filename):
diff --git a/cheatsheets/history b/cheatsheets/history
new file mode 100644
index 0000000..90cf809
--- /dev/null
+++ b/cheatsheets/history
@@ -0,0 +1,2 @@
+# To see most used top 10 commands:
+history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n10
\ No newline at end of file
diff --git a/cheatsheets/lsof b/cheatsheets/lsof
new file mode 100644
index 0000000..a7f45fa
--- /dev/null
+++ b/cheatsheets/lsof
@@ -0,0 +1,3 @@
+# To find listening ports 
+lsof -Pnl +M -i4
+
diff --git a/cheatsheets/mysql b/cheatsheets/mysql
new file mode 100644
index 0000000..2fe112f
--- /dev/null
+++ b/cheatsheets/mysql
@@ -0,0 +1,5 @@
+# To create a database in utf8 charset
+CREATE DATABASE owa CHARACTER SET utf8 COLLATE utf8_general_ci;
+
+# To add a user and give rights on the given database
+GRANT ALL PRIVILEGES ON database.* TO 'user'@'localhost'IDENTIFIED BY 'password' WITH GRANT OPTION;
\ No newline at end of file