head - output the first part of files
head [OPTION]... [FILE]...
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.
N may have a multiplier suffix: b 512, k 1024, m 1024*1024.
Written by David MacKenzie and Jim Meyering.
Report bugs to <bug-coreutils@gnu.org>.
Copyright (C) 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 head is maintained as a Texinfo manual. If the info and head programs are properly installed at your site, the command
info head
should give you access to the complete manual.