Table of Contents

1. Challenge

   Determine How Many Processes Are Currently Running

   Run the following command:

   ps aux | grep -v grep | wc -l
   

2. Challenge

   Determine the Current System Load

   Run one of the following commands:

   uptime
   

   cat /proc/loadavg
   

3. Challenge

   Determine How Many Processes Are Running as cloud_user

   Run the following command:

   ps -U cloud_user | wc -l
   

4. Challenge

   Determine the PID of the xfce4-session Process

   Run the following command:

   ps aux | grep xfce4-session | grep -v grep
   

5. Challenge

   Determine How Many Threads the xfce4-session Process Is Using

   View the current threads reported in the PID's status. Replace <PID_VALUE> with the PID value obtained from the last objective (the value after cloud_u+):

   cat /proc/<PID_VALUE>/status | grep Threads
   

6. Challenge

   Write a Small Shell Script that Returns the Number of Threads in a Process

   Create a new file named /home/cloud_user/bin/threads.sh, and add the following script:

   #!/bin/bash
    
   if [ -n $1 ]
   then
     _pid=$(ps aux | grep -E "$1\$" | grep -v grep | grep -v threads.sh | awk '{print $2}')
     cat /proc/$_pid/status | grep Threads
   fi
   

   Make the script executable with chmod u+x bin/threads.sh.

   Determine the number of threads the xfce4-session process is running with ./bin/threads.sh xfce4-session.