Perl - immitate perpetual "tail" Post: 302133304

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head

HEAD(1) 							   User Commands							   HEAD(1)

NAME

       head - output the first part of files

SYNOPSIS

       head [OPTION]... [FILE]...

DESCRIPTION

       Print  the first 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 too.

       -c, --bytes=[-]K
	      print the first K bytes of each file; with the leading `-', print all but the last K bytes of each file

       -n, --lines=[-]K
	      print the first K lines instead of the first 10; with the leading `-', print all but the last K lines of each file

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

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

       --help display this help and exit

       --version
	      output version information and exit

       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.

AUTHOR

       Written by David MacKenzie and Jim Meyering.

REPORTING BUGS

       Report head bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report head translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2011 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.

SEE ALSO

       The  full documentation for head is maintained as a Texinfo manual.  If the info and head programs are properly installed at your site, the
       command

	      info coreutils 'head invocation'

       should give you access to the complete manual.

GNU coreutils 8.12.197-032bb					  September 2011							   HEAD(1)