A Shell Script to maintain *ra1n bootstrap installers

odysseyra1n.sh

#!/usr/bin/env bash
# A Shell Script to maintain *ra1n bootstrap installers.
# Diab Neiroukh - 6/Jun/2020 (Licensed under the GNU GPLv3)

SCRIPTDIR="/usr/local/share/odysseyra1n"
SCRIPTLINK="https://raw.githubusercontent.com/coolstar/Odyssey-bootstrap/master/procursus-deploy-linux-macos.sh"
SCRIPTNAME="procursus-deploy-linux-macos.sh"
SCRIPTNEEDROOT=true

notifyuser()
{
    echo ""
    echo "$@"
    echo ""
}

wget -q --spider http://github.com

if [[ $? == 0 ]]; then
    cd "$SCRIPTDIR" || mkdir "$SCRIPTDIR"

    if $SCRIPTNEEDROOT; then
        if [[ $UID == 0 ]]; then
            curl -fsSL "$SCRIPTLINK" -o "$SCRIPTDIR/$SCRIPTNAME"
            chmod +x "$SCRIPTDIR/$SCRIPTNAME"
        else
            notifyuser "Not running as root, will not update..."
        fi
    fi

    bash -c "$SCRIPTDIR/$SCRIPTNAME"
else
    if [[ -d $SCRIPTDIR ]]; then
        bash -c "$SCRIPTDIR/$SCRIPTNAME"
    else
        notifyuser "Script not found, run once as root with a valid internet connection..."
    fi
fi