My prompt is such:

PS1="\[\033[32m\]\u@myserver\n\[\033[33m\w$\033[0m\] "

So as output after I ls i see this:


When I should only (I think) see:


The color commands work (beautifully) but this duplicate line thing is driving me nuts. I adapted this command prompt from the one that comes with MySysGit for windows.

Why is this happening?

If I just hit enter at the prompt, it prints correctly, without the duplicate second line. The duplication only happens after ls, cd or maybe some other bash commands.

migrated from stackoverflow.com Jul 24 '10 at 1:02

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  • Looks like you're missing a \] before the \w but I don't think that's related to the problem you're asking about... – David Z Jul 24 '10 at 1:04

I don't see the doubling, but you're missing two escaped brackets:

PS1="\[\033[32m\]\u@myserver\n\[\033[33m\]\w$\[\033[0m\] "

You might also see if PROMPT_COMMAND has a value. It may be producing some output. This will tell you what it's set to:


Without knowing what it contains, I can't tell you what to do about it if it is part of the problem. However, you can clear it like this:


That's nothing after the equal sign.

  • After setting my prompt to what you gave me in the first sample the doubling goes away. Weird, and thanks! – Jake Jul 24 '10 at 2:07

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