Service health check script in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if the service is running using systemctl.

Bash Scripting

if systemctl [1] nginx.service; then
  echo "Service is running"
else
  echo "Service is not running"
fi

Drag options to blanks, or click blank then click option'

Astatus

Bstart

Cstop

Drestart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' or 'stop' instead of 'status' will change the service state instead of checking it.

The 'systemctl status' command checks the current status of a service.

2fill in blank

medium

Complete the code to assign the service status output to a variable.

Bash Scripting

service_status=$(systemctl [1] nginx.service)

Drag options to blanks, or click blank then click option'

Astart

Bdisable

Cenable

Dstatus

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' or 'enable' will not give the status output.

The 'status' command outputs the current status, which we capture in a variable.

3fill in blank

hard

Fix the error in the if condition to check if the service is active.

Bash Scripting

if systemctl is-[1] nginx.service; then
  echo "Service is active"
else
  echo "Service is inactive"
fi

Drag options to blanks, or click blank then click option'

Aactive

Brunning

Cenabled

Dstarted

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'running' or 'started' causes command errors.

The correct command is 'systemctl is-active' to check if the service is running.

4fill in blank

hard

Fill both blanks to create a loop that checks the service status every 5 seconds and breaks if active.

Bash Scripting

while true; do
  status=$(systemctl is-[1] nginx.service)
  if [ "$status" [2] "active" ]; then
    echo "Service is active"
    break
  fi
  sleep 5
done

Drag options to blanks, or click blank then click option'

Aactive

B==

C!=

Drunning

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'is-running' instead of 'is-active'.

Using '!=' instead of '==' in the if condition.

Use 'is-active' to check status and '==' to compare strings in the if condition.

5fill in blank

hard

Fill all three blanks to create a function that checks service status and returns 0 if active, 1 otherwise.

Bash Scripting

check_service() {
  local status=$(systemctl is-[1] $1)
  if [ "$status" [2] "active" ]; then
    return [3]
  else
    return 1
  fi
}

Drag options to blanks, or click blank then click option'

Aactive

B==

C0

Drunning

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'running' instead of 'active'.

Using '=' instead of '==' in the if condition.

Returning 1 for active status.

The function uses 'is-active' to check status, '==' to compare, and returns 0 for active.