Monitor Log Files in Real Time using tail

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tail Command – Monitor Logs in Real Time

As said, tail command is the most common solution to display a log file in real time. However, the command to display the file has two versions, as illustrated in the below examples.

• In the first example the command tail needs the -f argument to follow the content of a file.

sudo tail -f /var/log/apache2/error.log

• The second version of the command is actually a command itself: tailf. You won’t need to use the -f switch because the command is built-in with the -f argument.

sudo tailf /var/log/apache2/error.log