Updated script

script.sh

@@ -1,24 +1,50 @@
 #!/bin/bash
 
-# Check the Linux distro
+# Function to update Ubuntu/Debian
-distro=$(cat /etc/os-release | grep ^NAME | cut -d '=' -f2- | sed 's/"//g')
+update_debian_based() {
+    echo "Updating $1..."
+    sudo apt-get update && sudo apt-get upgrade -y
+    echo "Upgrade completed!"
+}
 
-# Update the OS
+# Function to update Fedora
-case $distro in
+update_fedora() {
-  "Ubuntu" | "Linux Mint")
+    echo "Updating Fedora..."
-    sudo apt update && sudo apt upgrade -y
-    ;;
-  "Fedora" | "CentOS" | "RHEL")
     sudo dnf update -y
+    echo "Upgrade completed!"
+}
+
+# Function to update CentOS
+update_centos() {
+    echo "Updating CentOS..."
+    sudo yum update -y
+    echo "Upgrade completed!"
+}
+
+# Detecting the distribution based on /etc/os-release
+if [ -f /etc/os-release ]; then
+    . /etc/os-release
+    DISTRO=$ID
+else
+    echo "Cannot detect the OS. /etc/os-release not found."
+    exit 1
+fi
+
+# Updating the system based on detected distribution
+case "$DISTRO" in
+    ubuntu)
+        update_debian_based "Ubuntu"
         ;;
-  "openSUSE")
+    debian)
-    sudo zypper update -y
+        update_debian_based "Debian"
         ;;
-  "Debian")
+    fedora)
-    sudo apt update && sudo apt upgrade -y
+        update_fedora
+        ;;
+    centos)
+        update_centos
         ;;
     *)
-    echo "Unsupported Linux distribution: $distro"
+        echo "Unsupported distribution: $DISTRO"
         exit 1
-    ;;
 esac