How to change your current username on Ubuntu Linux

Beware, this action is VERY dangerous and might ruin some of your running applications, I tried it first on a virtual machine and then my actual machine and it messed up 2 or 3 apps only, I was lucky as these were easy to fix, here we go (Read the instructions below carefully):

usermod -l newname -m -d /home/newname oldname

Please note that you MUST:

  1. be logged out from the user that you will change the “username” for 
  2. and make sure all that user’s applications are closed.

Thanks go to prshah for his post here

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About SoCRaT

Research Support and Infrastructure Engineer, OSS & Linux Geek
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