os_server.sh hinzugefügt

os_server.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+# Script zur Ausgabe der Betriebssystemen von Linux-Servern
+# Vorrausgesetzt sind:
+# 1. eine Liste der Server in der Datei hosts.txt
+# 2. befüllte ~/.ssh/config
+
+get_os_info() {
+    local host=$1
+    
+    result=$(ssh -o ConnectTimeout=5 -o BatchMode=yes "$host" '
+        if [ -f /etc/os-release ]; then
+            . /etc/os-release
+            echo "$NAME|$VERSION_ID|$(uname -r)"
+        elif [ -f /etc/redhat-release ]; then
+            echo "$(cat /etc/redhat-release)|unknown|$(uname -r)"
+        elif [ -f /etc/debian_version ]; then
+            echo "Debian|$(cat /etc/debian_version)|$(uname -r)"
+        else
+            echo "$(uname -s)|unknown|$(uname -r)"
+        fi
+    ' 2>/dev/null)
+    
+    if [ $? -eq 0 ]; then
+        echo "$host|$result"
+    else
+        echo "$host|CONNECTION_FAILED|-|-"
+    fi
+}
+
+if [ ! -f "hosts.txt" ]; then
+    echo "ERROR: hosts.txt nicht gefunden!" >&2
+    exit 1
+fi
+
+echo "Server|OS|Version|Kernel"
+
+echo "# Lese hosts.txt..." >&2
+
+while read -r line; do
+    [[ -z "$line" ]] && continue
+    [[ "$line" =~ ^# ]] && continue
+    [[ "$line" =~ ^[[:space:]]*$ ]] && continue
+    
+    get_os_info "$line"
+done < hosts.txt