Table of Contents

1. Challenge

   Confirm Select Utilities Are Available by Checking the Version for Each

   1. ps
   2. top / htop
   3. vmstat
   4. mpstat
   5. iostat
   6. pidstat
2. Challenge

   Test the Functionality of Each Utility by Completing Specific Tasks

   1. ps
      • Change the columns displayed
      • Search for a specific process
   2. top / htop
      • Add a column, change the sort column
      • Search for bash processes
   3. vmstat
      • Execute the command
      • Execute the command again on a 3 second cycle, and repeat 5 times
   4. mpstat
      • Execute the command
      • Execute the command again, and display all metrics
   5. iostat
      • Execute the command, and display all metrics
      • Execute the command again on a 2 second cycle, and repeat 10 times while writing the data to a log file.
   6. pidstat
      • View all processes
      • Display the process tree for any process containing "sshd"
3. Challenge

   Launch a Script and Monitor the System

   1. Execute the systemcheck.sh script from the scripts directory, and send it to the background.
      • This script will spawn a separate process that will impact the system.
   2. Use one or more these tools to view active processes to determine what the script is doing.
      • Determine what processes are spawned by the script.
      • Identify what resources are being impacted by the script.
      • Collect the script process ID as well as any related child process PIDs.
   3. Kill all parent and child processes, preferably using one of these tools.