grub2-themes/grub-theme-slaze/Install

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#!/bin/bash
# Slaze - Grub2 Abstract Theme
ROOT_UID=0
# Welcome message
echo -e "\n\t**********************************\n\t* Slaze - Grub2 Abstract Theme *\n\t**********************************"
# Check command avalibility
function has_command() {
command -v $1 > /dev/null
}
echo -e "\nChecking for root access..."
# Checking for root access and proceed if it is present
if [ "$UID" -eq "$ROOT_UID" ]; then
# Create themes directory if not exists
echo -e "Checking for the existence of themes directory..."
mkdir -p /boot/grub/themes
# Copy Slaze
echo -e "Installing Slaze theme..."
cp -a Slaze /boot/grub/themes
# Set Slaze
echo -e "Setting Slaze as default..."
grep "GRUB_THEME=" /etc/default/grub 2>&1 >/dev/null && sed -i '/GRUB_THEME=/d' /etc/default/grub
echo "GRUB_THEME=\"/boot/grub/themes/Slaze/theme.txt\"" >> /etc/default/grub
# Update grub config
echo -e "Updating grub config..."
if has_command update-grub; then
update-grub
elif has_command grub-mkconfig; then
grub-mkconfig -o /boot/grub/grub.cfg
fi
# Success message
echo -e "\n\t ***************\n\t * All done! *\n\t ***************\n"
else
# Error message
echo -e "\n\t ******************************\n\t * Error! -> Run me as root *\n\t ******************************\n"
fi