Linux command line utility for watching log files live?

What's a good linux command line utility for watching a log file live? It's probably obvious but I totally forgot it.


Solution 1:

There are two things that leap immediately to mind...

tail -f

or

multitail

Solution 2:

Assuming you are in the same folder as the logfile:

tail -f logfilename

Solution 3:

If you want to watch a specific aspect of your file, say just IPs in an access log, you can do :

tail -f your_file | cut -d' ' -f1 | logtop

assuming that IPs are the first column of your log file.