TAILF(1) User Commands TAILF(1)
NAME
tailf - follow the growth of a log file
SYNOPSIS
tailf [option] file
DESCRIPTION
tailf is deprecated. It may have unfixed bugs and will be removed in March 2017. Nowadays
it's safe to use tail -f (coreutils) in contrast to the original documentation below.
tailf will print out the last 10 lines of the given file and then wait for this file to
grow. It is similar to tail -f but does 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.
tailf is extremely useful for monitoring log files on a laptop when logging is infrequent
and the user desires that the hard disk 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.
AUTHOR
This program was originally written by Rik Faith (faith@acm.org) and may be freely dis‐
tributed 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 (kzak@redhat.com).
SEE ALSO
tail(1), less(1)
AVAILABILITY
The tailf command is part of the util-linux package and is available from ftp://ftp.ker‐
nel.org/pub/linux/utils/util-linux/.
util-linux July 2014 TAILF(1)
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