My Terminal is being weird, anyone seen this before?

[MDJCM]

This is what happens when i use the cursor keys to navigate/try to recall previous commands with the Up arrow:

I've tried this:

Look in your Home folder -> Library -> Preferences, and delete the file:

com.apple.terminal.plist

Next time you run Terminal, it will create the default preferences again.

Didn't change the cursor keys but did reset the bg colour.

Any ideas? This beats me

 

[rman]

The keys have not been defined. Hopefully someone will come along with the key definitions that you are looking for.

 

[MDJCM]

Weird, I havent changed anything, I dont think i've ever had to use Terminal on this Mac.

 

[vansmith]

Such odd characters will be printed if the current window is executing a program. From your screenshot, I don't actually see a prompt which could mean that an application is being executed. If you open up a new tab/window, do you see a prompt?

 

[McYukon]

Might be a stuck sudo command,
Open the activity monitor and see if there is any process with sudo in it's name and kill it.
Also, OS X Terminal displays a blank window instead of a command prompt | MacFixIt - CNET Reviews

 

[MDJCM]

Strange, I left it a few days and the terminal looks normal now, with a prompt

Thanks