reboot.sh

#!/usr/bin/env bash
set -eu
# Cosmetics (colours for text).
BOLD='\e[1m'
BRED='\e[91m'
BBLUE='\e[34m'  
BGREEN='\e[92m'
BYELLOW='\e[93m'
RESET='\e[0m'

# Pretty print (function).
info_print () {
    echo -e "${BOLD}${BGREEN}[ ${BYELLOW}•${BGREEN} ] $1${RESET}"
}

# Pretty print for input (function).
input_print () {
    echo -ne "${BOLD}${BYELLOW}[ ${BGREEN}•${BYELLOW} ] $1${RESET}"
}

# Alert user of bad input (function).
error_print () {
    echo -e "${BOLD}${BRED}[ ${BBLUE}•${BRED} ] $1${RESET}"
}

info_print "Unmounting all partitions..."
umount -R /mnt/boot
umount -R /mnt
info_print "System will reboot in 5..4..3..2..1.."
sleep 5
reboot