Linux System Setup From Scratch

sudo pacman -Syu gcc make cmake python3 python-pip git wget nvim zsh cloudflared openssh rsync rclone
sudo chsh -s $(which zsh) $(whoami)
 
# Then, ensure visudo has:
# %wheel ALL=(ALL:ALL) ALL

# To add 'myuser' to the 'sudo' group
sudo usermod -aG sudo myuser

# To add 'myuser' to the 'wheel' group
sudo usermod -aG wheel myuser
 
# Typically, the wheel group is already configured in /etc/sudoers

## Install oh-my-zsh
sh -c "$(wget https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh -O -)"
 
## Switch to a theme that shows more useful info in the prompt
sed -i 's/^ZSH_THEME=.*/ZSH_THEME="avit"/' ~/.zshrc
 
## Install plugins
git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting
git clone https://github.com/zsh-users/zsh-autosuggestions ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions
git clone https://github.com/zsh-users/zsh-history-substring-search ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-history-substring-search
 
## Replace the default plugins with the following
sed -i.bak '/^plugins=.*/c\
plugins=(\
  git\
  zsh-syntax-highlighting\
  zsh-autosuggestions\
  zsh-history-substring-search\
)' ~/.zshrc

ssh-keygen -t ed25519 -C "pc"
cat ~/.ssh/id_ed25519.pub

mkdir -p ~/.ssh
echo "Host gila
        Hostname gila.navraj.me
        User gila
        Port 22
        ProxyCommand cloudflared access ssh --hostname %h
Host sol
        Hostname sol.asu.edu
        User sroy85
        Port 22
        ProxyJump gila" >> ~/.ssh/config

mo() {
  # Usage: mo <directory_name>  — mkdir -p and cd into it in one go
  if [ -z "$1" ]; then
    echo "Usage: mo <directory_name>"
    return 1
  fi
 
  if mkdir -p -- "$1"; then
    if cd -- "$1"; then
      return 0
    else
      echo "Error: Successfully created directory '$1', but could not cd into it." >&2
      return 1
    fi
  else
    echo "Error: Could not create directory '$1'." >&2
    return 1
  fi
}