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🖥 Best command to find a bug in Linux?
journalctl -xe`
What it does:
Shows the latest critical events (-e jumps to the end of the log).
Decodes error codes and statuses (-x adds explanations).
Includes system and user logs - not just the kernel.
When to use:
When a service crashes (systemctl status hints at a problem).
When unexpected reboots, freezes or service failures.
When problems with the network, access rights, drivers.
Why it's better than others:
Much more informative than dmesg, tail /var/log/syslog, messages.
Works on all modern distributions with systemd.
journalctl -xe`
What it does:Shows the latest critical events (-e jumps to the end of the log).
Decodes error codes and statuses (-x adds explanations).
Includes system and user logs - not just the kernel.
When to use:When a service crashes (systemctl status hints at a problem).
When unexpected reboots, freezes or service failures.
When problems with the network, access rights, drivers.
Why it's better than others:Much more informative than dmesg, tail /var/log/syslog, messages.
Works on all modern distributions with systemd.