Create useradd_improved.sh

useradd_improved.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+## Author: Ankam Ravi Kumar
+## Date: 21st Sep 2024
+## Purpose: To Create a users in Linux
+
+check_command_success() {
+	if [ $? -ne 0 ]; then
+		echo "Error: $1"
+		exit 1
+	fi
+}
+
+if [ $(id -u) -ne 0 ]; then
+	echo "Error: Only root may add a user to the system."
+	exit 2
+fi
+
+# Prompt for the username and password
+read -p "Enter username: " username
+read -s -p "Enter password: " password
+echo
+
+if id "$username" &>/dev/null; then
+	echo "Error: User '$username' already exists!"
+	exit 1
+fi
+
+encrypted_password=$(perl -e 'print crypt($ARGV[0], "password")' "$password")
+check_command_success "Failed to encrypt the password."
+
+useradd -m -p "$encrypted_password" "$username"
+check_command_success "Failed to add the user."
+
+passwd -e "$username"
+check_command_success "Failed to set password expiry."
+
+echo "Success: User '$username' has been added to the system!"