Top 50 Linux Commands for Troubleshooting Linux Server?

Troubleshooting a Linux server often involves using a variety of command-line tools to diagnose and resolve issues. Here are the top 50 Linux commands that can be used for troubleshooting a Linux server:

  1. ls: List directory contents.
  2. cd: Change directory.
  3. pwd: Print working directory.
  4. top: Monitor system processes.
  5. ps: Display process status.
  6. kill: Terminate a process.
  7. cat: Concatenate and display files.
  8. tail: Display the last lines of a file.
  9. grep: Search for patterns in files.
  10. find: Search for files and directories.
  11. netstat: Network statistics.
  12. ifconfig/ip: View and configure network interfaces.
  13. ping: Send ICMP echo requests to a network host.
  14. traceroute: Determine the route packets take to a destination.
  15. dig: DNS lookup utility.
  16. ssh: Securely connect to a remote server.
  17. scp: Securely copy files between hosts.
  18. rsync: Sync and transfer files between systems.
  19. df: Display disk usage statistics.
  20. du: Estimate file and directory space usage.
  21. mount: Mount filesystems.
  22. umount: Unmount filesystems.
  23. service/systemctl: Manage system services.
  24. lsof: List open files and processes.
  25. chmod/chown: Change file permissions and ownership.
  26. uname: Print system information.
  27. history: Display command history.
  28. tar: Archive files.
  29. gzip/gunzip: Compress and decompress files.
  30. tailf: Monitor log files in real-time.
  31. head: Display the beginning of a file.
  32. sort: Sort lines of text files.
  33. wget: Download files from the web.
  34. yum/apt-get: Package management utilities.
  35. useradd/userdel: Manage user accounts.
  36. passwd: Change user passwords.
  37. su/sudo: Execute commands as other users or root.
  38. date: Display or set the system date and time.
  39. iptables/ufw: Configure firewall rules.
  40. htop: Interactive process viewer.
  41. systemctl: Manage system services (systemd-based systems).
  42. journalctl: Query the systemd journal and event logs.
  43. ss: Display socket statistics.
  44. free: Display memory usage.
  45. sar: Collect, report, or save system activity information.
  46. dmidecode: Retrieve hardware information from the BIOS.
  47. tcpdump: Network packet analyzer.
  48. iostat: Report CPU and input/output statistics.
  49. netcat: Network utility for reading/writing network connections.
  50. rsnapshot: Incremental backup utility.

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