feat manage script

scripts/linux-change_hostname.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+if [ "$EUID" -ne 0 ]; then
+    echo "Please run this script as root using sudo."
+    exit 1
+fi
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 <new-hostname>"
+    exit 1
+fi
+
+NEW_HOSTNAME=$1
+OLD_HOSTNAME=$(hostname)
+
+hostnamectl set-hostname "$NEW_HOSTNAME"
+
+sed -i "s/$OLD_HOSTNAME/$NEW_HOSTNAME/g" /etc/hosts
+
+echo "Hostname has been changed to: $(hostname)"