apt-update.sh

#!/bin/bash
###############################################################################
# Author: Mike Abreu
###############################################################################
main() {
    display_message $CBLUE "[*] System Update Starting."

    display_message $CORANGE "[+] Updating Aptitude Repositories:${CGREEN} sudo apt-get update"
    sudo apt-get update

    display_message $CORANGE "[+] Upgrading Installed Packages:${CGREEN} sudo apt-get upgrade -y --show-progress"
    sudo apt-get upgrade -y --show-progress

    display_message $CORANGE "[+] Upgrading Distrubution Packages:${CGREEN} sudo apt-get dist-upgrade -y --show-progress"
    sudo apt-get dist-upgrade -y --show-progress

    display_message $CORANGE "[+] Erase Old Downloaded Archives:${CGREEN} sudo apt-get autoclean -y"
    sudo apt-get autoclean -y

    display_message $CORANGE "[+] Removing Unused Packages:${CGREEN} sudo apt-get autoremove -y --show-progress"
    sudo apt-get autoremove -y --show-progress

    display_message $CBLUE "[*] System Update Finished."
}
###############################################################################
add_terminal_colors() {
    CE="\033[0m";
    CT="\033[38;5;";CRED="${CT}9m";CGREEN="${CT}28m";CBLUE="${CT}27m"
    CORANGE="${CT}202m";CYELLOW="${CT}226m";CPURPLE="${CT}53m"
    CB="\033[48;5;";CBRED="${CB}9m";CBGREEN="${CB}28m";CBBLUE="${CB}27m"
    CBORANGE="${CB}202m";CBYELLOW="${CB}226m";CBPURPLE="${CB}53m"
    for HEX in {0..255};do eval "C$HEX"="\\\033[38\;5\;${HEX}m";done
    for HEX in {0..255};do eval "CB${HEX}"="\\\033[48\;5\;${HEX}m";done
}
display_message() {
    # display_message color message
    echo -e "${1}${2}${CE}"
}
add_terminal_colors
main @