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CentOS 7.0 - man page for tail (centos section 1)

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TAIL(1) 				  User Commands 				  TAIL(1)

       tail - output the last part of files

       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

       Mandatory arguments to long options are mandatory for short options too.

       -c, --bytes=K
	      output the last K bytes; or use -c +K to output bytes starting with the Kth of each

       -f, --follow[={name|descriptor}]
	      output appended data as the file grows;

	      an absent option argument means 'descriptor'

       -F     same as --follow=name --retry

       -n, --lines=K
	      output the last K lines, instead of the last 10; or use -n +K  to  output  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 if it is inaccessible

       -s, --sleep-interval=N
	      with  -f,  sleep for approximately N seconds (default 1.0) between iterations; with
	      inotify and --pid=P, check process P at least once every N seconds

       -v, --verbose
	      always output headers giving file names

       --help display this help and exit

	      output version information and exit

       If the first character of K (the number of bytes or lines) is a '+', print beginning  with
       the  Kth  item from the start of each file, otherwise, print the last K items in the file.
       K may have a multiplier suffix: b 512, kB 1000, K 1024,	MB  1000*1000,	M  1024*1024,  GB
       1000*1000*1000, G 1024*1024*1024, and so on for T, P, E, Z, Y.

       With  --follow (-f), tail defaults to following the file descriptor, which means that even
       if a tail'ed file is renamed, tail will continue to track its end.  This default  behavior
       is  not	desirable when you really want to track the actual name of the file, not the file
       descriptor (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.

       GNU  coreutils  online help: <http://www.gnu.org/software/coreutils/> Report tail transla-
       tion bugs to <http://translationproject.org/team/>

       Written by Paul Rubin, David MacKenzie, Ian Lance Taylor, and Jim Meyering.

       Copyright (C) 2013 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 command

	      info coreutils 'tail invocation'

       should give you access to the complete manual.

GNU coreutils 8.22			    June 2014					  TAIL(1)
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