add bash admin command

nsbot.py

@@ -44,6 +44,13 @@ def recv(chan):
 def send(msg, chan):
     irc.send(enc("PRIVMSG " + chan + " :" + msg))
 
+def update(chan):
+    code = subprocess.call("git pull")
+    if code == 0:
+        send("updated!", chan)
+    else:
+        send("there was an error updating.", chan)
+
 def parse_admin(msg, chan):
     admin_cmd = msg[10:]
     if admin_cmd == "down":
@@ -58,11 +65,10 @@ def parse_admin(msg, chan):
     elif "raw" in admin_cmd:
         irc.send(enc(admin_cmd[4:]))
     elif admin_cmd == "update":
-        code = subprocess.call("git pull", shell=True)
-        if code == 0:
-            send("updated!", chan)
-        else:
-            send("there was an error updating.", chan)
+        update(chan)
+    elif "bash" in admin_cmd:
+        code = subprocess.call(admin_cmd[5:])
+        send("command completed with code " + str(code), chan)
 
 def parse_msg(msg, user, chan):
     if msg.startswith("!ns admin"):