STEP BY STEP :


  1. Update termux: apt-get update && apt-get upgrade -y
  2. Install wget: apt-get install wget -y
  3. Install proot: apt-get install proot -y
  4. Install git: apt-get install git -y
  5. Go to HOME folder: cd ~
  6. Download script: git clone https://github.com/MFDGaming/ubuntu-in-termux.git
  7. Go to script folder: cd ubuntu-in-termux
  8. Give execution permission: chmod +x ubuntu.sh
  9. Run the script: ./ubuntu.sh -y
  10. Now just start ubuntu: ./startubuntu.sh