tailf - follow the growth of a log file
tailf is deprecated.
It may have unfixed bugs and will be removed from
util-linux in March 2017. Nowadays it's safe to use tail -f
coreutils), in contrast to what the original documentation below says.
will print out the last 10 lines of the given file
wait for this file
to grow. It is similar to tail -f
not access the file when it is not growing. This has the side effect of not
updating the access time for the file, so a filesystem flush does not occur
periodically when no log activity is happening.
is extremely useful for monitoring log files on a laptop when
logging is infrequent and the user wishes the hard disk to spin down to
conserve battery life.
- -n, --lines=number, -number
- Output the last number lines, instead of the last 10.
- -V, --version
- Display version information and exit.
- -h, --help
- Display help text and exit.
This program was originally written by Rik Faith (email@example.com) and may be
freely distributed under the terms of the X11/MIT License. There is ABSOLUTELY
NO WARRANTY for this program.
The latest inotify-based implementation was written by Karel Zak
The tailf command is part of the util-linux package and is available from