tail man page on JazzOS

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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 input.

       Mandatory  arguments  to	 long  options are mandatory for short options

	      keep trying to open a file even if it is inaccessible when  tail
	      starts  or if it becomes inaccessible later; useful when follow‐
	      ing by name, i.e., with --follow=name

       -c, --bytes=N
	      output the last N bytes

       -f, --follow[={name|descriptor}]
	      output appended data as the file grows; -f, --follow, and --fol‐
	      low=descriptor are equivalent

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

       -n, --lines=N
	      output the last N lines, instead of the last 10

	      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 -f, terminate after process ID, PID dies

       -q, --quiet, --silent
	      never output headers giving file names

       -s, --sleep-interval=S
	      with -f, sleep for approximately S seconds (default 1.0) between

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

       --help display this help and exit

	      output version information and exit

       If the first character of N (the number of bytes or lines)  is  a  `+',
       print  beginning	 with the Nth item from the start of each file, other‐
       wise, print the last N items in the file.  N may have a multiplier suf‐
       fix: b 512, k 1024, m 1024*1024.

       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 descrip‐
       tor (e.g., log rotation).  Use --follow=name in that case.  That causes
       tail to track the named file by reopening it periodically to see if  it
       has been removed and recreated by some other program.

       Written	by Paul Rubin, David MacKenzie, Ian Lance Taylor, and Jim Mey‐

       Report bugs to <bug-coreutils@gnu.org>.

       Copyright © 2006 Free Software Foundation, Inc.
       This is free software.  You may redistribute copies  of	it  under  the
       terms	   of	    the	     GNU      General	   Public      License
       <http://www.gnu.org/licenses/gpl.html>.	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 tail

       should give you access to the complete manual.

tail 6.4			 October 2006			       TAIL(1)

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