Personal script to customize bash shell prompt with custom colors.

Just copy and paste the code in the terminal.

🔧 Installation

🟢 Regular User Prompt Colors

# Ensure regular user's .bashrc sources .bashrc.d
grep -q "bashrc.d" ~/.bashrc || echo '
# Source custom scripts from .bashrc.d/
if [ -d ~/.bashrc.d ]; then
    for i in ~/.bashrc.d/*.sh; do
        [ -r "$i" ] && source "$i"
    done
fi' >> ~/.bashrc

# Create bashrc.d drop-in directory (if not exist)
mkdir -p ~/.bashrc.d/

# Create script in drop-in directory
cat << 'EOF' > ~/.bashrc.d/shell_color.sh
#!/bin/bash
# Regular user prompt - GREEN color
PS1='\[\033[32m\]\u@\h\[\033[0m\] \[\033[34m\]\w\[\033[0m\] \[\033[32m\]❯\[\033[0m\] '
EOF

# Apply changes to current session
source ~/.bashrc

🔴 For Root User Prompt Colors

# Ensure root's .bashrc sources the .bashrc.d directory
sudo bash -c 'grep -q "bashrc.d" /root/.bashrc || echo "
# Source custom scripts from .bashrc.d/
if [ -d ~/.bashrc.d ]; then
    for i in ~/.bashrc.d/*.sh; do
        [ -r \"\$i\" ] && source \"\$i\"
    done
fi" >> /root/.bashrc'

# Create bashrc.d drop-in directory (if not exist)
sudo mkdir -p /root/.bashrc.d/

# Create script in drop-in directory
sudo bash -c 'cat << "EOF" > /root/.bashrc.d/shell_color.sh
#!/bin/bash
# Root prompt - RED color
PS1='"'"'\[\033[31m\]\u@\h\[\033[0m\] \[\033[34m\]\w\[\033[0m\] \[\033[31m\]❯\[\033[0m\] '"'"'
EOF'

---

✅ DONE - When Do Changes Take Effect?

🟢 For Regular Users

• Immediate visibility after:
  • Running source ~/.bashrc in current terminal.
  • Running bash to start a subshell.
• Automatic visibility in:
  • New terminal windows/tabs.
  • New SSH sessions.
  • After logout and login.

🔴 For Root User

• Immediate visibility after:
  • Running source ~/.bashrc while already in root shell.
  • Executing exec bash while already in root shell.
• Automatic visibility when:
  • Starting new root session with sudo -i.
  • Using su - (if root password is set).
  • Opening new terminal/SSH session as root user.