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Watching updates at the end of a file, with or without the tail utility

10
votes
You could use multitail. It is an enhanced tail that supports command execution on regular expression match. E.g. the following command plays a sound and opens an xmessage window each time a martian …
answered Nov 23 '11 by andcoz
159
votes
Use the -F option instead: tail -F /var/log/kern.log The -F option tells tail to track changes to the file by filename, instead of using the inode number which changes during rotation. It will also keep trying to open the file if it's not present. …
answered Oct 16 '11 by andcoz