Linux Command Library
commands
Commands
basic
Basic
tips
Tips

head

output the first part of files

- Output the first few lines of a file:
head -n [count_of_lines] [filename]

- Output the first few bytes of a file:
head -c [size_in_bytes] [filename]

- Output everything but the last few lines of a file:
head -n -[count_of_lines] [filename]

- Output everything but the last few bytes of a file:
head -c -[size_in_bytes] [filename]

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.

-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.

Written by David MacKenzie and Jim Meyering.

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

Copyright © 2016 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.

tail(1)

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

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