fedora 14，麻烦诸位看看我的shell是出什么问题了？输入错误命令不能返回

nfel

如果我不小心输入了一个不存在的命令，比如 asdfj，shell就输出如下信息，并且一直不能返回了。只能ctrl + c 结束。

# asdfj

Command not found.
** (pk-command-not-found:7095): CRITICAL **: dbus_g_proxy_cancel_call: assertion `pending != NULL' failed

哪位知道这是怎么一回事吗？该如何解决？谢谢！

nfel

找到原因了，供诸位参考。

If you get a "command not found" error from bash while updating your system, bash will "hang" while pk-command-not-found is trying to query for a similar command (pk-command-not-found is a handler command ran by bash on FC12 when you try to run a command that does not exist). You can either simply accept this behaviour and wait until yum-based stuff have all exited, or you can instruct PackageKit to not perform this check at all. Even when everything is Working Properly(TM), it still might take a bit of time for the bash to return to prompt after such a query. As such, disabling this may be something you want to do anyways. Change the SoftwareSourceSearch parameter in /etc/PackageKit/CommandNotFound.conf to false:

# sed -i 's/SoftwareSourceSearch=true/SoftwareSourceSearch=false/' /etc/PackageKit/CommandNotFound.conf