OpenSuse Linux: How to Read Logs or Log Files

On OpenSUSE Linux, you can use a variety of tools to view log files. Some of the most common tools include:

1. tail: This command allows you to view the last few lines of a log file. For example, to view the last 10 lines of the system log file, you can use the following command:

tail -n 10 /var/log/messages

2. less: This command allows you to view a log file one page at a time. To view a log file with less, use the following command:

less /var/log/messages

3. cat: This command allows you to view the entire contents of a log file. To view a log file with cat, use the following command:

cat /var/log/messages

4. grep: This command allows you to search for specific keywords or patterns in a log file. For example, to search for all lines containing the word "error" in the system log file, you can use the following command:

grep "error" /var/log/messages

5. journalctl: This command allows you to view and manage the system log files generated by the systemd daemon. To view the system log, use the following command:

journalctl