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tail [OPTION]... [FILE]...
Print the last 10 lines of each FILE to standard output. With more
than one FILE, precede each with a header giving the file name. With
no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options
output the last K bytes; alternatively, use -c +K to output
bytes starting with the Kth of each file
output appended data as the file grows; -f, --follow, and --fol-
low=descriptor are equivalent
-F same as --follow=name --retry
output the last K lines, instead of the last 10; or use -n +K to
output lines starting with the Kth
with --follow=name, reopen a FILE which has not changed size
after N (default 5) iterations to see if it has been unlinked or
renamed (this is the usual case of rotated log files). With
inotify, this option is rarely useful.
with -f, terminate after process ID, PID dies
-q, --quiet, --silent
never output headers giving file names
keep trying to open a file even when it is or becomes inaccessi-
ble; useful when following by name, i.e., with --follow=name
with -f, sleep for approximately N seconds (default 1.0) between
With inotify and --pid=P, check process P at least once every N
always output headers giving file names
--help display this help and exit
tor (e.g., log rotation). Use --follow=name in that case. That causes
tail to track the named file in a way that accommodates renaming,
removal and creation.
Written by Paul Rubin, David MacKenzie, Ian Lance Taylor, and Jim Mey-
Report tail bugs to firstname.lastname@example.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report tail translation bugs to <http://translationproject.org/team/>
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
The full documentation for tail is maintained as a Texinfo manual. If
the info and tail programs are properly installed at your site, the
info coreutils 'tail invocation'
should give you access to the complete manual.
GNU coreutils 8.4 November 2015 TAIL(1)