You do not have permission to edit this page, for the following reasons:

This IP address has been blocked from editing Wikipedia.
This does not affect your ability to read Wikipedia pages.
Most people who see this message have done nothing wrong. Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.

The IP address or range 44.200.0.0/16 has been blocked (disabled) by ‪Blablubbs‬ for the following reason(s):

The IP address that you are currently using has been blocked because it is believed to be a web host provider or colocation provider. To prevent abuse, web hosts and colocation providers may be blocked from editing Wikipedia.
You will not be able to edit Wikipedia using a web host or colocation provider because it hides your IP address, much like a proxy or VPN.
We recommend that you attempt to use another connection to edit. For example, if you use a proxy or VPN to connect to the internet, turn it off when editing Wikipedia. If you edit using a mobile connection, try using a Wi-Fi connection, and vice versa. If you are using a corporate internet connection, switch to a different Wi-Fi network. If you have a Wikipedia account, please log in.
If you do not have any other way to edit Wikipedia, you will need to request an IP block exemption.

How to appeal if you are confident that your connection does not use a colocation provider's IP address:
If you are confident that you are not using a web host, you may appeal this block by adding the following text on your talk page: ((unblock|reason=Caught by a colocation web host block but this host or IP is not a web host. My IP address is _______. Place any further information here. ~~~~)). You must fill in the blank with your IP address for this block to be investigated. Your IP address can be determined here. Alternatively, if you wish to keep your IP address private you can use the unblock ticket request system. There are several reasons you might be editing using the IP address of a web host or colocation provider (such as if you are using VPN software or a business network); please use this method of appeal only if you think your IP address is in fact not a web host or colocation provider.

Administrators: The IP block exemption user right should only be applied to allow users to edit using web host in exceptional circumstances, and requests should usually be directed to the functionaries team via email. If you intend to give the IPBE user right, a CheckUser needs to take a look at the account. This can be requested most easily at SPI Quick Checkuser Requests. Unblocking an IP or IP range with this template is highly discouraged without at least contacting the blocking administrator.

This block will expire on 16:45, 10 February 2025.

Even when blocked, you will usually still be able to edit your user talk page, as well as email administrators and other editors.

For information on how to proceed, please read the FAQ for blocked users and the guideline on block appeals. The guide to appealing blocks may also be helpful.

Other useful links: Blocking policy · Help:I have been blocked
Your IP address is in a range that has been blocked on all Wikimedia Foundation wikis. The block was made by ‪AntiCompositeNumber‬. The reason given is Open proxy/Webhost: Visit the FAQ if you are affected .
- Start of block: 13:55, 18 August 2022
- Expiry of block: 13:55, 18 March 2025
Your current IP address is 44.200.34.63. The blocked range is 44.200.0.0/16. Please include all above details in any queries you make. If you believe you were blocked by mistake, you can find additional information and instructions in the No open proxies global policy. Otherwise, to discuss the block please post a request for review on Meta-Wiki. You could also send an email to the stewards VRT queue at stewards@wikimedia.org including all above details.

You can view and copy the source of this page:

((more citations needed|date=June 2020))
((short description|Program on Unix and Unix-like systems))
((lowercase))
((Infobox software
| name                   = head
| logo                   = 
| screenshot             = Head-example-command.gif
| screenshot size        = 
| caption                = Example usage of <code>head</code> command to display first 5 lines of [[Lorem ipsum]] in the specified file 
| author                 = 
| developer              = Various [[open-source software|open-source]] and [[commercial software|commercial]] developers
| released               = 
| latest release version = 
| latest release date    = 
| operating system       = [[Unix]], [[Unix-like]], [[MSX-DOS]], [[IBM i]]
| platform               = [[Cross-platform]]
| genre                  = [[Command (computing)|Command]]
| license                = [[coreutils]]: [[GPLv3]]
| website                = 
))
'''head''' is a [[Computer program|program]] on [[Unix]] and [[Unix-like]] [[operating system]]s used to display the beginning  of a text [[Computer file|file]] or [[pipe (computing)|pipe]]d data.

==Syntax==
The command [[syntax]] is:

 head [options] &lt;file_name&gt;

By default, <code>head</code> will print the first 10 lines of its input to the [[standard output]]. The number of lines printed may be changed with a [[command line]] option. The following example shows the first 20 lines of ''filename'':

 head -n 20 ''filename''

This displays the first 5 lines of all files starting with ''foo'':

 head -n 5 ''foo*''

Most versions((citation needed|date=June 2020)) allow omitting <code>n</code> and instead directly specifying the number: <code>-5</code>. [[GNU]] head allows negative arguments for the <code>-n</code> option, meaning to print all but the last - argument value counted - lines of each input file.

===Flags===
 -c <x number of bytes> Copy first x number of bytes.

===Other===
Many early versions of Unix and Plan 9 did not have this command, and documentation and books used [[sed]] instead:

 sed 5q ''filename''

The example prints every line (implicit) and quit after the fifth.

Equivalently, [[awk]] may be used to print the first five lines in a file:

 awk 'NR < 6' ''filename''

However, neither sed nor awk were available in early versions of [[BSD]], which were based on
[[Version 6 Unix]], and included head.<ref>((cite journal |last1=Spinellis |first1=Diomidis
|title=dspinellis/unix-history-man: Version 1.0 web pages (v1.1-web)
|journal=Zenodo |date=2022 |doi=10.5281/zenodo.7248228
|url=https://dspinellis.github.io/unix-history-man/man1.html))</ref>

==Implementations==
A <code>head</code> command is also part of [[ASCII Corporation|ASCII]]'s ''MSX-DOS2 Tools'' for [[MSX-DOS]] version 2.<ref>[https://archive.org/details/MSXDOS2TOOLS MSX-DOS2 Tools User's Manual by ASCII Corporation]</ref> The ((Mono|head)) command has also been ported to the [[IBM i]] operating system.<ref>((cite web |title=IBM System i Version 7.2 Programming Qshell |language=en |author=IBM |author-link=IBM |url=https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_74/rzahz/rzahzpdf.pdf?view=kc |access-date=2020-09-05 ))</ref>

==See also==
*[[tail (Unix)]]
*[[dd (Unix)]]
*[[List of Unix commands]]

==References==
((Reflist))

==External links==
((Wikibooks|Guide to Unix|Commands))
*[https://www.gnu.org/software/coreutils/manual/html_node/head-invocation.html head] manual page from [[GNU]] [[coreutils]].
*[http://www.freebsd.org/cgi/man.cgi?query=head&apropos=0&sektion=0&manpath=FreeBSD+5.3-RELEASE+and+Ports&format=html FreeBSD documentation for head]

((Unix commands))
((Core Utilities commands))

[[Category:Unix text processing utilities]]
[[Category:Unix SUS2008 utilities]]
[[Category:IBM i Qshell commands]]

Pages transcluded onto the current version of this page (help):

Head (Unix) (edit)
Template:Ambox (view source) (template editor protected)
Template:Category handler (view source) (protected)
Template:Citation needed (view source) (protected)
Template:Cite journal (view source) (protected)
Template:Cite web (view source) (protected)
Template:Core Utilities commands (edit)
Template:Delink (view source) (protected)
Template:Find sources mainspace (view source) (template editor protected)
Template:Fix (view source) (protected)
Template:Fix/category (view source) (protected)
Template:Hlist/styles.css (view source) (protected)
Template:Icon (view source) (template editor protected)
Template:Ifsubst (view source) (template editor protected)
Template:Infobox (view source) (template editor protected)
Template:Infobox software (view source) (template editor protected)
Template:Infobox software/simple (view source) (template editor protected)
Template:Lowercase (view source) (template editor protected)
Template:Lowercase title (view source) (template editor protected)
Template:Main other (view source) (protected)
Template:Mono (view source) (template editor protected)
Template:Mono/styles.css (view source) (template editor protected)
Template:More citations needed (view source) (template editor protected)
Template:Navbox (view source) (template editor protected)
Template:Pagetype (view source) (protected)
Template:Plainlist/styles.css (view source) (protected)
Template:Reflist (view source) (protected)
Template:Reflist/styles.css (view source) (protected)
Template:SDcat (view source) (protected)
Template:Short description (view source) (protected)
Template:Short description/lowercasecheck (view source) (protected)
Template:Side box (view source) (template editor protected)
Template:Sister project (view source) (template editor protected)
Template:Template other (view source) (protected)
Template:Trim (view source) (protected)
Template:Unix commands (edit)
Template:Wikibooks (view source) (template editor protected)
Template:Wikidata (view source) (template editor protected)
Module:Arguments (view source) (protected)
Module:Category handler (view source) (protected)
Module:Category handler/blacklist (view source) (protected)
Module:Category handler/config (view source) (protected)
Module:Category handler/data (view source) (protected)
Module:Category handler/shared (view source) (protected)
Module:Check for unknown parameters (view source) (protected)
Module:Citation/CS1 (view source) (protected)
Module:Citation/CS1/COinS (view source) (protected)
Module:Citation/CS1/Configuration (view source) (protected)
Module:Citation/CS1/Date validation (view source) (protected)
Module:Citation/CS1/Identifiers (view source) (protected)
Module:Citation/CS1/Utilities (view source) (protected)
Module:Citation/CS1/Whitelist (view source) (protected)
Module:Citation/CS1/styles.css (view source) (protected)
Module:Delink (view source) (protected)
Module:Disambiguation/templates (view source) (protected)
Module:Find sources (view source) (template editor protected)
Module:Find sources/config (view source) (template editor protected)
Module:Find sources/links (view source) (template editor protected)
Module:Find sources/templates/Find sources mainspace (view source) (template editor protected)
Module:Icon (view source) (template editor protected)
Module:Icon/data (view source) (template editor protected)
Module:Infobox (view source) (template editor protected)
Module:Infobox/styles.css (view source) (template editor protected)
Module:InfoboxImage (view source) (template editor protected)
Module:Message box (view source) (protected)
Module:Message box/ambox.css (view source) (protected)
Module:Message box/configuration (view source) (protected)
Module:Namespace detect/config (view source) (protected)
Module:Namespace detect/data (view source) (protected)
Module:Navbar (view source) (protected)
Module:Navbar/configuration (view source) (protected)
Module:Navbar/styles.css (view source) (protected)
Module:Navbox (view source) (template editor protected)
Module:Navbox/configuration (view source) (template editor protected)
Module:Navbox/styles.css (view source) (template editor protected)
Module:Pagetype (view source) (protected)
Module:Pagetype/config (view source) (protected)
Module:Pagetype/disambiguation (view source) (protected)
Module:Pagetype/setindex (view source) (protected)
Module:Pagetype/softredirect (view source) (protected)
Module:SDcat (view source) (protected)
Module:Side box (view source) (template editor protected)
Module:Side box/styles.css (view source) (template editor protected)
Module:String (view source) (protected)
Module:Unsubst (view source) (protected)
Module:Wd (view source) (template editor protected)
Module:Wd/i18n (view source) (template editor protected)
Module:Wikitext Parsing (view source) (protected)
Module:Yesno (view source) (protected)

Return to Head (Unix).

Retrieved from "https://en.wikipedia.org/wiki/Head_(Unix)"