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Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

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HEAD

Section: User Commands (1)
Updated: September 2017
Index Return to Main Contents
 

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=,[-]NUM/
print the first NUM bytes of each file; with the leading '-', print all but the last NUM bytes of each file
-n, --lines=,[-]NUM/
print the first NUM lines instead of the first 10; with the leading '-', print all but the last NUM lines of each file
-q, --quiet, --silent
never print headers giving file names
-v, --verbose
always print headers giving file names
-z, --zero-terminated
line delimiter is NUL, not newline
--help
display this help and exit
--version
output version information and exit

NUM 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

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report head translation bugs to <http://translationproject.org/team/>  

COPYRIGHT

Copyright © 2017 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

tail(1)


Full documentation at: <http://www.gnu.org/software/coreutils/head>
or available locally via: info aq(coreutils) head invocationaq


 

Index

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO


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