TAILFSection: Linux Programmer's Manual (1)
Updated: 13 February 2003
Index Return to Main Contents
NAMEtailf - follow the growth of a log file
SYNOPSIStailf [OPTION] file
DESCRIPTIONtailf will print out the last 10 lines of a file and then wait for the 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.
Mandatory arguments to long options are mandatory for short options too.
- -n, --lines N, -N
- output the last N lines, instead of the last 10.
AUTHORThis program was originally written by Rik Faith ([email protected]) 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 ([email protected]).
SEE ALSOtail(1), less(1)
AVAILABILITYThe tailf command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
This document was created by man2html, using the manual pages.
Time: 05:29:11 GMT, December 24, 2015