report.sh

#!/bin/bash
#author: salman sk
# Script Header
# This script generates a daily system report including SSH logins, CPU and memory usage, and tool logs.
# Usage: Run this script daily using a cron job or manually.

# Configuration
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPORT_DIR="$SCRIPT_DIR/reports"
LOG_DIR="$SCRIPT_DIR/logs"
REPORT_FILE="$REPORT_DIR/report_$(date '+%Y-%m-%d').txt"

mkdir -p "$REPORT_DIR"
mkdir -p "$LOG_DIR"

# Check if necessary commands are available
for cmd in last top free awk grep; do
  if ! command -v "$cmd" &>/dev/null; then
    echo "Error: Command '$cmd' is not available. Please install it to proceed."
    exit 1
  fi
done

{
  echo "Daily System Report - $(date)"
  echo "============================="
  echo ""

  # SSH Logins
  echo "SSH Logins:"
  last -a | grep 'ssh' | head -n 20
  echo ""

  # CPU Usage
  echo "CPU Usage:"
  top -bn1 | grep "Cpu(s)" | awk '{print "CPU Load: " $2 + $4 "%"}'
  echo ""

  # Memory Usage
  echo "Memory Usage:"
  free -h | awk '/^Mem:/ {print "Total: " $2 ", Used: " $3 ", Free: " $4}'
  echo ""

  # Tool Logs
  echo "Tool Logs:"
  if [ -d "$LOG_DIR" ]; then
    log_files=("$LOG_DIR"/*.log)
    if [ "${#log_files[@]}" -gt 0 ]; then
      for log in "${log_files[@]}"; do
        echo "Log File: $(basename "$log")"
        tail -n 20 "$log"
        echo ""
      done
    else
      echo "No logs found in $LOG_DIR."
    fi
  else
    echo "Log directory $LOG_DIR does not exist."
  fi
} > "$REPORT_FILE"

# Report completion
echo "Report generated at $REPORT_FILE"
exit 0