diff --git a/scripts/cdb/cmd.py b/scripts/cdb/cmd.py
index 925578b..46741ce 100644
--- a/scripts/cdb/cmd.py
+++ b/scripts/cdb/cmd.py
@@ -1,6 +1,15 @@
 
 def _b_cmd(browser, tab, scriptmgr, params):
-    pass
+    filename = params[0].split(':')[0]
+    line = int(params[0].split(':')[1])
+    url = scriptmgr.getUrl(filename)
+    print(params, url)
+    tab.call_method("Debugger.setBreakpointByUrl",
+                    lineNumber=line,
+                    url=url,
+                    columnNumber=0,
+                    condition=''
+    )
 
 def _p_cmd(browser, tab, scriptmgr, params):
     pass
@@ -13,6 +22,7 @@ def _processCdbCmd(cmd_str, browser, tab, scriptmgr):
         'b': _b_cmd,
         'p': None,
     }
+    print(cmdlist)
     if cmdlist[0] in cmd_hash:
         cmd_hash[cmdlist[0]](browser, tab, scriptmgr, cmdlist[1:])
     else:
@@ -25,7 +35,7 @@ def processCmd(browser, tab, scriptmgr):
             if cmdline[0] == '!':
                 msg = eval(cmdline[1:])
             else:
-                _processCdbCmd(cmdline[1:], browser, tab, scriptmgr)
+                _processCdbCmd(cmdline, browser, tab, scriptmgr)
     except Exception as e:
         print(e)
 
diff --git a/scripts/cdb/scriptmgr.py b/scripts/cdb/scriptmgr.py
index 2765f85..643bc59 100644
--- a/scripts/cdb/scriptmgr.py
+++ b/scripts/cdb/scriptmgr.py
@@ -8,3 +8,9 @@ class ScriptMgr:
 
     def debuggerOnScriptParsed(self, **kwargs):
         self.scripts.append(kwargs)
+
+    def getUrl(self, filename):
+        for script in self.scripts:
+            if filename in script['url']:
+                return script['url']
+        return None