Linux Interview Questions For Freshers
  1. How do you install software on Linux?
  2. What is the purpose of the Linux kernel?
  3. Can you explain the difference between a user and a superuser in Linux?
  4. What is the root directory in Linux?
  5. How do you create a new user account in Linux?
  6. How do you change file permissions in Linux?
  7. What is the purpose of the sudo command in Linux?
  8. How do you find files in Linux?
  9. How do you install and use text editors in Linux?
  10. What is the role of the shell in Linux?
  11. How do you navigate the file system in Linux?
  12. How do you manage processes in Linux?
  13. What are the different types of Linux file systems?
  14. How do you access the Linux command line interface?
  15. How do you create a new file in Linux using the command line?
  16. What is the difference between Linux distributions and which one would you recommend for a beginner?
  17. How do you compress and extract files in Linux?
  18. What are the most common types of Linux commands and what do they do?
  19. How do you install updates on a Linux machine?
  20. What is the difference between absolute and relative paths in Linux?
  21. How do you create and edit files in a Linux text editor?
  22. What is the difference between a binary and a source package in Linux?
  23. How do you find out what processes are running on a Linux machine?
  24. What is the difference between a hard link and a soft link in Linux?
  25. How do you create and manage symbolic links in Linux?
  26. What is the purpose of the /etc directory in Linux?
  27. How do you create and run shell scripts in Linux?
  28. How do you manage software packages in Linux?
  29. How do you set up and configure a new printer in Linux?
  30. How do you connect to a remote Linux machine using SSH?
  31. How do you manage disk space on a Linux machine?
  32. How do you manage Linux system logs?
  33. What is the difference between Linux and Unix?
  34. How do you set up and configure a new user account in Linux?
  35. Write a command to list all the files in a directory.
  36. Write a shell script that creates a new file and writes some text to it.
  37. Write a command to copy a file from one directory to another.
  38. Write a command to find all the files that contain a certain string of text.
  39. Write a command to display the contents of a file in reverse order.
Linux Intermediate Interview Questions
  1. How does Linux handle memory management?
  2. How do you configure and use the Linux firewall?
  3. What is the role of the init process in Linux?
  4. What are the differences between TCP and UDP in Linux?
  5. How do you create and manage Linux partitions?
  6. How do you troubleshoot network issues in Linux?
  7. How do you configure and use cron jobs in Linux?
  8. How does Linux handle device drivers?
  9. How do you configure and use the Linux mail server?
  10. How do you install and configure a web server in Linux?
  11. What is the purpose of the /etc/passwd file in Linux?
  12. How do you use the grep command in Linux?
  13. How do you create and manage Linux users and groups?
  14. How do you use the rsync command in Linux?
  15. How do you configure and use the Linux networking subsystem?
  16. How do you write a basic bash script to automate a task in Linux?
  17. How do you configure and use RAID in Linux?
  18. How do you monitor system performance in Linux?
  19. What are Linux runlevels and how do they work?
  20. How do you troubleshoot hardware issues in Linux?
  21. What is the purpose of the /usr directory in Linux?
  22. How do you create and manage virtual machines in Linux?
  23. How do you configure and use the Linux kernel command line?
  24. How do you configure and use the Linux mail transfer agent?
  25. How do you use Git to manage code repositories in Linux?
  26. How do you configure and use a Linux software firewall?
  27. What is the purpose of the /var directory in Linux?
  28. How do you configure and use the Linux network file system (NFS)?
  29. How do you use the grep and sed commands in combination to search and replace text in files?
  30. How do you configure and use the Linux proxy server?
  31. How do you monitor and manage Linux network traffic?
  32. What is the purpose of the /boot directory in Linux?
  33. How do you troubleshoot Linux boot issues?
  34. How do you configure and use the Linux swap space?
  35. How do you configure and use the Linux disk quota system?
  36. Write a Python script that parses a CSV file and outputs the data in JSON format.
  37. Write a shell script that creates a backup of a directory and compresses it into a tarball.
  38. Write a command to search for all the files in a directory that have been modified within the last 24 hours.
  39. Write a C program that reads a text file and counts the number of words in it.
  40. Write a command to find all the files in a directory that have a certain set of permissions.
Linux Interview Questions For Experienced
  1. How do you create and manage Linux services?
  2. What is the role of the kernel module in Linux?
  3. How does Linux handle virtual memory?
  4. What is the role of the initramfs in Linux?
  5. How do you configure and use SELinux in Linux?
  6. How does Linux handle system calls?
  7. How do you configure and use the Linux logical volume manager?
  8. How does Linux handle disk scheduling?
  9. What is the role of the /proc filesystem in Linux?
  10. How do you use the awk command in Linux?
  11. How do you create and manage Linux network interfaces?
  12. How do you use the sed command in Linux?
  13. How does Linux handle interrupts?
  14. How do you configure and use the Linux RAID system?
  15. What is the role of the Linux swap space?
  16. How do you use the netstat command in Linux?
  17. How do you use the ping command in Linux?
  18. How does Linux handle system time and date?
  19. How do you use the mount command in Linux?
  20. How do you configure and use the Linux DNS server?
  21. How do you write a C program that interacts with the Linux system calls?
  22. How do you use the Linux perf tool to analyze system performance?
  23. How do you configure and use the Linux network packet filter (iptables)?
  24. How do you configure and use the Linux name service cache daemon (nscd)?
  25. How do you configure and use the Linux loadable kernel module (LKM) system?
  26. How do you write a Python program that interacts with the Linux system calls?
  27. How do you use the Linux strace tool to debug system calls?
  28. How do you configure and use the Linux system scheduler (cgroups)?
  29. How do you configure and use the Linux system message bus (dbus)?
  30. How do you write a Linux kernel module that interacts with hardware?
  31. How do you configure and use the Linux kernel virtual file system (VFS)?
  32. How do you configure and use the Linux system time subsystem?
  33. How do you use the Linux perf tool to analyze hardware events?
  34. How do you configure and use the Linux high availability subsystem (Pacemaker)?
  35. How do you configure and use the Linux audit subsystem?
  36. How do you write a Linux kernel module that interacts with the network stack?
  37. How do you configure and use the Linux task scheduler (cron)?
  38. How do you configure and use the Linux device tree?
  39. How do you use the Linux sysdig tool to analyze system events?
  40. How do you write a Linux kernel module that interacts with the file system?
  41. Write a Linux kernel module that creates a new virtual file system.
  42. Write a Python script that uses the requests library to make HTTP requests and parse the responses.
  43. Write a command to monitor the network traffic on a specific interface and output the results to a file.
  44. Write a shell script that creates a new user account and sets up an SSH key for them.
  45. Write a C program that interacts with the Linux virtual file system and implements a custom file system operation.