A shell script made by ChatGPT to update Arch Linux. This script takes five options, namely, -h, -c, -o, -a and -f. If provided none, -o, -a and -f are assumed (in that order). Options can be specified individually divided by spaces or they can be combined together like so: -aof. The order is preserved.

arch-update.sh

#!/bin/bash

# Define error messages
errmes[1]="Error: Unknown argument"
errmes[2]="Error: Too many arguments"
errmes[3]="Error: Unknown option"

# Define colors
GREEN="\e[32m"
RED="\e[31m"
NORMAL="\e[0m"

# Define update functions
function official_update {
  echo -e "${GREEN}Updating with pacman...${NORMAL}"
  sudo pacman -Syu
}

function aur_update {
  echo -e "${GREEN}Looking for updates in the AUR...${NORMAL}"
  yay -Syua
}

function firmware_update {
  echo -e "${GREEN}Looking for firmware updates...${NORMAL}"
  sudo fwupdmgr refresh --force && sudo fwupdmgr get-updates && sudo fwupdmgr update
}

function clean_cache {
  echo -e "${GREEN}Cleaning downloaded packages...${NORMAL}"
  yay -Scc
}

# Define update function
function update {
  for (( i=0; i<${#1}; i++ )); do
    c=${1:$i:1}

    case $c in
      o)
        # Update system with pacman
        official_update
        if [ $? -ne 0 ]; then
          echo -e "${RED}Error: pacman update failed${NORMAL}"
        fi
        ;;
      a)
        # Check for updates in the AUR
        aur_update
        if [ $? -ne 0 ]; then
          echo -e "${RED}Error: AUR update failed${NORMAL}"
        fi
        ;;
      f)
        # Look for firmware updates
        firmware_update
        if [ $? -ne 0 ]; then
          echo -e "${RED}Error: firmware update failed${NORMAL}"
        fi
        ;;
      c)
        # Clean downloaded packages from cache
        clean_cache
        if [ $? -ne 0 ]; then
          echo -e "${RED}Error: cleaning cache failed${NORMAL}"
        fi
        ;;
      *)
        # Unknown option
        echo -e "${RED}${errmes[3]} -$c${NORMAL}"
        return 3
    esac
  done
}


# Check for --help option
for var in "$@"; do
  if [ "$var" == "--help" ]; then
    echo "Usage: arch-update [OPTION]... [PACKAGE]..."
    echo "Update system with pacman, look for firmware updates, and check for updates in the AUR."
    echo ""
    echo "  -o     update system with pacman"
    echo "  -f     look for firmware updates"
    echo "  -a     check for updates in the AUR"
    echo "  -c     clean downloaded packages from cache"
    echo ""
    echo "  --help display this help and exit"
    exit 0
  fi
done

# Check number of arguments
if [ $# -eq 0 ]; then
  official_update
  aur_update
  firmware_update
  exit 0
fi

# Check for single argument
if [ $# -eq 1 ]; then
  update "${1:1}"
  exit 0
fi

# Check for multiple arguments
if [ $# -le 4 ]; then
  for i in "$@"; do
    update "${i:1}"
    if [ $? -eq 3 ]; then
      exit 3
    fi
  done
else
  echo -e "${RED}${errmes[2]}${NORMAL}"
  exit 1
fi