Add Ansible/requirement-check.sh
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251
Ansible/requirement-check.sh
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251
Ansible/requirement-check.sh
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#!/bin/sh
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# Farbdefinitionen für schönere Ausgabe
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GREEN='\033[0;32m'
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RED='\033[0;31m'
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YELLOW='\033[0;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Prüfe, ob das Script mit Root-Rechten ausgeführt wird
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check_root() {
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if [ "$(id -u)" != "0" ]; then
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echo "${RED}Dieses Script benötigt Root-Rechte für Installationen.${NC}"
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echo "Bitte starte es erneut mit: sudo $0"
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exit 1
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fi
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}
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# Funktion zur Erkennung des Paketmanagers
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detect_package_manager() {
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if command -v apt >/dev/null 2>&1; then
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echo "apt"
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elif command -v dnf >/dev/null 2>&1; then
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echo "dnf"
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elif command -v yum >/dev/null 2>&1; then
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echo "yum"
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elif command -v pacman >/dev/null 2>&1; then
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echo "pacman"
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elif command -v zypper >/dev/null 2>&1; then
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echo "zypper"
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elif command -v apk >/dev/null 2>&1; then
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echo "apk"
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else
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echo "unknown"
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fi
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}
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# Funktion zur Installation eines Pakets
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install_package() {
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local pkg_manager=$1
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local pkg_name=$2
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echo "${BLUE}Installiere $pkg_name...${NC}"
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case $pkg_manager in
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apt)
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apt install -y $pkg_name
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;;
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dnf|yum)
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$pkg_manager install -y $pkg_name
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;;
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pacman)
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pacman -S --noconfirm $pkg_name
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;;
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zypper)
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zypper install -y $pkg_name
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;;
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apk)
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apk add $pkg_name
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;;
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*)
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echo "${RED}Unbekannter Paketmanager. Installation nicht möglich.${NC}"
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return 1
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;;
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esac
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if [ $? -eq 0 ]; then
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echo "${GREEN}$pkg_name erfolgreich installiert.${NC}"
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return 0
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else
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echo "${RED}Fehler bei der Installation von $pkg_name.${NC}"
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return 1
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fi
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}
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# Hauptprogramm
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echo "${BLUE}=== Überprüfung der Systemvoraussetzungen ===${NC}"
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echo
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# Erkenne den Paketmanager
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PKG_MANAGER=$(detect_package_manager)
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if [ "$PKG_MANAGER" = "unknown" ]; then
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echo "${RED}Konnte keinen bekannten Paketmanager erkennen.${NC}"
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echo "Bitte installiere fehlende Pakete manuell."
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need_manual_installation=true
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else
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echo "Erkannter Paketmanager: $PKG_MANAGER"
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need_manual_installation=false
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fi
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# Initialisiere Variable für fehlende Pakete
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missing_packages=""
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missing_ssh=false
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# 1. Prüfe bash
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echo -n "Prüfe bash... "
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if command -v bash >/dev/null 2>&1; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Nicht gefunden✗${NC}"
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missing_packages="$missing_packages bash"
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fi
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# 2. Prüfe python3
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echo -n "Prüfe python3... "
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if command -v python3 >/dev/null 2>&1; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Nicht gefunden✗${NC}"
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# Paketname für verschiedene Distributionen anpassen
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python_pkg="python3"
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if [ "$PKG_MANAGER" = "pacman" ]; then
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python_pkg="python"
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fi
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missing_packages="$missing_packages $python_pkg"
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fi
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# 3. Prüfe sudo
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echo -n "Prüfe sudo... "
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if command -v sudo >/dev/null 2>&1; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Nicht gefunden✗${NC}"
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missing_packages="$missing_packages sudo"
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fi
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# 4. Prüfe openssh-server
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echo -n "Prüfe openssh-server... "
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if systemctl status sshd >/dev/null 2>&1 || service ssh status >/dev/null 2>&1 || ps aux | grep -v grep | grep -q sshd; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Nicht gefunden✗${NC}"
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missing_ssh=true
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ssh_pkg="openssh-server"
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if [ "$PKG_MANAGER" = "pacman" ] || [ "$PKG_MANAGER" = "apk" ]; then
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ssh_pkg="openssh"
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fi
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missing_packages="$missing_packages $ssh_pkg"
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fi
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# Installation nur durchführen, wenn tatsächlich Pakete fehlen
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if [ -n "$missing_packages" ] && [ "$need_manual_installation" = "false" ]; then
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echo
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echo "${BLUE}Die folgenden Pakete müssen installiert werden:${NC}"
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echo "$missing_packages"
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echo
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# Frage nach Bestätigung
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echo -n "Möchtest du diese Pakete jetzt installieren? (j/N): "
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read -r answer
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if [ "$answer" = "j" ] || [ "$answer" = "J" ] || [ "$answer" = "y" ] || [ "$answer" = "Y" ]; then
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# Check for root only if we need to install
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check_root
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# Paketmanager aktualisieren
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echo "${BLUE}Aktualisiere Paketlisten...${NC}"
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case $PKG_MANAGER in
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apt)
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apt update
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;;
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dnf|yum)
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$PKG_MANAGER check-update || true # Ignoriere Exit-Code
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;;
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pacman)
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pacman -Sy
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;;
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zypper)
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zypper refresh
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;;
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apk)
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apk update
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;;
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esac
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echo
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# Installiere alle fehlenden Pakete
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for pkg in $missing_packages; do
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install_package "$PKG_MANAGER" "$pkg"
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done
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# SSH-Server starten falls nötig
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if [ "$missing_ssh" = "true" ]; then
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echo "${BLUE}Starte SSH-Server...${NC}"
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if command -v systemctl >/dev/null 2>&1; then
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systemctl enable --now sshd || systemctl enable --now ssh
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elif command -v service >/dev/null 2>&1; then
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service ssh start || service sshd start
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else
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echo "${YELLOW}Konnte SSH-Server nicht automatisch starten.${NC}"
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echo "Bitte starte den SSH-Server manuell."
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fi
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fi
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echo
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echo "${BLUE}=== Abschließende Überprüfung ===${NC}"
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all_requirements_met=true
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echo -n "bash: "
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if command -v bash >/dev/null 2>&1; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Fehlt trotz Installationsversuch!${NC}"
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all_requirements_met=false
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fi
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echo -n "python3: "
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if command -v python3 >/dev/null 2>&1; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Fehlt trotz Installationsversuch!${NC}"
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all_requirements_met=false
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fi
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echo -n "sudo: "
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if command -v sudo >/dev/null 2>&1; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Fehlt trotz Installationsversuch!${NC}"
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all_requirements_met=false
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fi
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echo -n "openssh-server: "
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if systemctl status sshd >/dev/null 2>&1 || service ssh status >/dev/null 2>&1 || ps aux | grep -v grep | grep -q sshd; then
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echo "${GREEN}Vorhanden✓${NC}"
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else
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echo "${RED}Fehlt trotz Installationsversuch!${NC}"
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all_requirements_met=false
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fi
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echo
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if $all_requirements_met; then
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echo "${GREEN}Alle Voraussetzungen sind erfüllt. System ist bereit!${NC}"
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else
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echo "${RED}Nicht alle Voraussetzungen konnten installiert werden.${NC}"
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echo "Bitte installiere die fehlenden Pakete manuell."
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exit 1
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fi
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else
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echo "Installation abgebrochen."
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fi
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elif [ -z "$missing_packages" ]; then
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echo
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echo "${GREEN}Alle Voraussetzungen sind bereits erfüllt. Keine Installation notwendig.${NC}"
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else
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echo
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echo "${YELLOW}Fehlende Pakete:${NC}"
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echo "$missing_packages"
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echo "${YELLOW}Bitte installiere diese Pakete manuell mit deinem Paketmanager.${NC}"
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fi
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