Linux Online Test

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About the test

The Linux online test assesses knowledge of the Linux operating system, its kernel, and programming Bash scripts. This test includes live coding tasks that are executed on the Ubuntu server.

The assessment includes work-sample tasks such as:

  • Managing permissions and authorization to prevent misuse of resources.
  • Partitioning disks to control how data is stored and retrieved in a file system.
  • Writing Bash scripts to automate tasks.

A good backend developer or Linux system administrator should be familiar with Linux as it's the most widely used server operating system.

Sample public questions

5 min
Unix Pipelines

The utility in the current working directory provides weather forecasts in your area.

When called, it outputs a 4-day forecast in the format "day: weather" separated by line breaks.

Write a bash script that outputs the number of days with a "Thunderstorm" forecast (case-sensitive).

See the example case for more details.

3 min
Linux Administration

The output of crontab -l contains the following job definitions:,
0 0,12 1 */4 * df -h /

@hourly du -h / >> /var/log/disk_usage

0 6 1-12 * * /usr/bin/testdome_candidates

Select the statements about the job definitions and schedules that are correct.

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22 more premium Linux questions

Permissions, Top, Export, Mail, Rename, Sed, Authorized Keys, Remote Server, Testing for Crashes, New Package Manager, Wildlife Photography Page, Compiler Executable, Vulnerable Function, Spell Checker, Time-Sheet Software, Virus Scanner, Problematic Executables, Generate Reports, Test New Computers, Server Crash, Hidden File, Code Building Server.

Skills and topics tested

  • Linux Administration
  • Permissions
  • Processes
  • Bash
  • Environmental Variable
  • File
  • Strings
  • Authorization
  • Disk Partitioning
  • File System
  • Random
  • Filesystem Hierarchy Standard
  • Firewall
  • Searching
  • Unix Pipelines
  • Compression
  • Conditions
  • Symbolic Links
  • Conditional Statements
  • Iteration
  • Logging
  • DNS

For job roles

  • Back-End Developer
  • Bash Developer
  • Linux System Administrator
  • Network Administrator

Sample candidate report

What others say

Decorative quote

Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

Product reviews

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G2 - High Performer (2022)
Capterra - 4.5 Stars
Capterra - Shortlist (2023)

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