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{{Short description|Directory information command on various operating systems}}
{{lowercase|title=pwd}}
{{Other uses|PWD (disambiguation)}}
:'''''PWD''' is also an initialism for "person with [[disabilities]]", Public Works Department, and a three letter abbreviation for [[password]].
{{lowercase}}
{{Infobox software
| name = pwd
| logo =
| screenshot = Pwdkommando.png
| screenshot size =
| caption = The <code>pwd</code> command
| author = [[AT&T Bell Laboratories]]
| developer = Various [[open-source software|open-source]] and [[commercial software|commercial]] developers
| released = {{Start date and age|1974|6}}
| latest release version =
| latest release date =
| programming language = [[C (programming language)|C]]
| operating system = [[Multics]], [[Unix]], [[Unix-like]], [[V (operating system)|V]], [[Plan 9 from Bell Labs|Plan 9]], [[Inferno (operating system)|Inferno]], [[SpartaDOS X]], [[Panos (operating system)|PANOS]], [[Windows CE]], [[KolibriOS]]
| platform = [[Cross-platform]]
| genre = [[Command (computing)|Command]]
| license = [[coreutils]]: [[GPLv3+]]<br />Plan 9: [[MIT License]]
| website =
}}
In [[Unix-like]] and some other [[operating system]]s, the <code>'''pwd'''</code> [[command (computing)|command]] ('''''p'''rint '''w'''orking '''d'''irectory'')<ref name="minix">{{Cite web|url=https://www.unix.com/man-page/minix/1/pwd/|title=pwd(1) [minix man page]|website=www.unix.com}}</ref><ref name="linux">{{Cite web|url=https://www.mankier.com/1/pwd|title=pwd - print name of current/working directory - man page|website=www.mankier.com}}</ref><ref name="gnu">{{Cite web|url=https://www.gnu.org/software/coreutils/manual/coreutils.html#pwd-invocation|title=GNU Coreutils|website=www.gnu.org}}</ref> writes the full [[path (computing)|pathname]] of the current [[working directory]] to the [[standard output]].<ref name="unix">{{cite book|url=http://cm.bell-labs.com/7thEdMan/v7vol1.pdf|title=Unix Time-Sharing System: Unix Programmer's Manual|edition=7th|volume=1|date=January 1979|publisher=[[Bell labs]]|page=142|archive-url=https://web.archive.org/web/20050520231659/http://cm.bell-labs.com/7thEdMan/v7vol1.pdf|archive-date=2005-05-20}}</ref><ref name="plan9">{{Cite web|title=pwd(1) [plan9 man page]|url=https://www.unix.com/man-page/plan9/1/pwd/|website=www.unix.com}}</ref><ref name="posix">{{Cite web|url=https://pubs.opengroup.org/onlinepubs/9699919799/utilities/pwd.html|title=pwd|website=pubs.opengroup.org}}</ref><ref name="dec">{{Cite web|url=https://www.unix.com/man-page/osf1/1/pwd/|title=pwd(1) [osf1 man page]|website=www.unix.com}}</ref><ref name="apple">{{Cite web|url=https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/pwd.1.html|title=Apple OS X MAN page}}</ref><ref name="bsd">{{Cite web|url=https://man.openbsd.org/pwd.1|title=pwd(1) - OpenBSD manual pages|website=man.openbsd.org}}</ref><ref name="solaris">{{Cite web|url=https://www.unix.com/man-page/opensolaris/1/pwd/|title=pwd(1) [opensolaris man page]|website=www.unix.com}}</ref>


==Implementations==
The '''pwd''' [[command (computing)|command]] ('''p'''rint '''w'''orking '''d'''irectory) is used to print the name of current [[working directory]] from a [[computer]]'s [[command-line interface]]. If the [[Command prompt|shell prompt]] does not already show this, the user can use this command to find their place in the [[filesystem|directory tree]]. This command is found in the [[Unix]] family of [[operating system]]s and other flavors as well. The [[DOS]] equivalent is "<tt>[[chdir|CD]]</tt>" with no arguments.
[[Multics]] had a <code>pwd</code> command (which was a short name of the <code>print_wdir</code> command)<ref>{{cite web |title=working_dir, wd, print_wdir, pwd (Multics help segment) |url=http://web.mit.edu/multics-history/source/Multics/doc/info_segments/working_dir.info |website=MIT |access-date=7 March 2020}}</ref> from which the Unix pwd command originated.<ref>{{cite web |last1=Van Vleck |first1=Tom |title=Unix and Multics |url=https://multicians.org/unix.html |website=Multicians.org |access-date=7 March 2020}}</ref> The command is a [[shell builtin]] in most [[Unix shell]]s such as [[Bourne shell]], [[Almquist shell|ash]], [[Bash (Unix shell)|bash]], [[Korn shell|ksh]], and [[Z shell|zsh]]. It can be implemented easily with the [[POSIX]] [[C (programming language)|C]] functions <code>getcwd()</code> or <code>getwd()</code>.


It is also available in the operating systems [[SpartaDOS X]],<ref>{{Cite web|url=http://sdx.atari8.info/sdx_files/4.48/SDX448_User_Guide.pdf|title=SpartaDOS X 4.48 User Guide}}</ref> [[Panos (operating system)|PANOS]],<ref>{{Cite web|url=http://chrisacorns.computinghistory.org.uk/Panos.html#CL|title=Chris's Acorns: Panos|website=chrisacorns.computinghistory.org.uk}}</ref> and [[KolibriOS]].<ref>{{Cite web|url=http://wiki.kolibrios.org/wiki/Shell|title=Shell - KolibriOS wiki|website=wiki.kolibrios.org}}</ref> The equivalent on [[DOS]] (<code>[[COMMAND.COM]]</code>) and [[Microsoft Windows]] (<code>[[cmd.exe]]</code>) is the <code>[[cd (command)|cd]]</code> command with no arguments. [[Windows PowerShell]] provides the equivalent <code>Get-Location</code> [[cmdlet]] with the standard aliases <code>gl</code> and <code>pwd</code>.
It is a command which is sometimes included built into certain [[UNIX shell|shell]]s such as [[Bourne shell|sh]], and [[Bourne-Again shell|bash]]. It can be implemented easily with the [[POSIX]] [[C programming language|C]] functions <tt>getcwd()</tt> and/or <tt>getwd()</tt>.
On [[Windows CE 5.0]], the <code>cmd.exe</code> ''Command Processor Shell'' includes the <code>pwd</code> command.<ref>{{Cite web|url=https://docs.microsoft.com/en-us/previous-versions/windows/embedded/ms907227(v=msdn.10)|title=Command Processor Commands (Windows CE 5.0)|website=docs.microsoft.com}}</ref>


{{code|pwd}} as found on Unix systems is part of the [[X/Open]] Portability Guide since issue 2 of 1987. It was inherited into the first version of POSIX.1 and the [[Single Unix Specification]].<ref>{{man|cu|wc|SUS}}</ref> It appeared in [[Ancient UNIX|Version 5 Unix]].<ref>{{man|1|pwd|FreeBSD}}</ref> The version of <code>pwd</code> bundled in [[GNU]] [[coreutils]] was written by Jim Meyering.<ref>{{man|1|pwd|Linux}}</ref>
Example:
$ pwd
/home/foobar


The [[numerical analysis|numerical computing]] environments [[MATLAB]] and [[GNU Octave]] include a <code>pwd</code>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
function with similar functionality.<ref>{{Cite web|url=https://www.mathworks.com/help/matlab/ref/pwd.html|title=Identify current folder - MATLAB pwd|website=www.mathworks.com}}</ref><ref>{{Cite web|url=https://octave.sourceforge.io/octave/function/pwd.html|title=Function Reference: pwd|website=octave.sourceforge.io}}</ref> The [[OpenVMS]] equivalent is <code>show default</code>.
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if (document.all){
Cols=15;
Cl=24; //Pe&#351;pe&#351;e geli&#351; mesafeleri!
Cs=50; //Sayfaya enine yay&#305;l&#305;&#351; mesafeleri!
Ts=16; //Rakamlar&#305;n b&#252;y&#252;kl&#252;kleri!
Tc='#008800';//Renk
Tc1='#00ff00';//Renk1
MnS=22; //Ak&#305;&#351; h&#305;zlar&#305;!
MxS=25; //Ak&#305;&#351; h&#305;zlar&#305;!
I=Cs;
Sp=new Array();S=new Array();Y=new Array(5,6);
C=new Array();M=new Array();B=new Array();
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document.write("<div style='position:relative'>");
for(i=0; i < Cols; i++){
S=I+=Cs;
document.write("<div id='A' style='position:absolute;top:0;font-family:Arial;font-size:"
+Ts+"px;left:"+S+";width:"+Ts+"px;height:0px;color:"+Tc+";visibility:hidden'></div>");
}
document.write("</div></div>");


==*nix examples==
for(j=0; j < Cols; j++){
{| class="wikitable"
RC[j]=1+Math.round(Math.random()*Cl);
! <code>Command</code> !! Explanation
Y[j]=0;
|-
Sp[j]=Math.round(MnS+Math.random()*MxS);
| <code>pwd</code> || Display the current working directory. Example: /home/foobar
for(i=0; i < RC[j]; i++){
|-
B='';
| <code>pwd -P</code> || Display the current working directory physical path - without symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/realdir
C=Math.round(Math.random()*1)+' ';
|-
M[j]=B[0]+=C;
| <code>pwd -L</code> || Display the current working directory logical path - with symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/symlinked
}
|-
}
|}
function Cycle(){
Container.style.top=window.document.body.scrollTop;
for (i=0; i < Cols; i++){
var r = Math.floor(Math.random()*Tcc.length);
E = '<font color='+Tc1+'>'+Tcc[r]+'</font>';
Y+=Sp;


Note: POSIX requires that the default behavior be as if the <code>-L</code> switch were provided.
if (Y > window.document.body.clientHeight){
for(i2=0; i2 < Cols; i2++){
RC[i2]=1+Math.round(Math.random()*Cl);
for(i3=0; i3 < RC[i2]; i3++){
B[i3]='';
C[i3]=Math.round(Math.random()*1)+' ';
C[Math.floor(Math.random()*i2)]=' '+' ';
M=B[0]+=C[i3];
Y=-Ts*M.length/1.5;
A.style.visibility='visible';
}
Sp=Math.round(MnS+Math.random()*MxS);
}
}
A.style.top=Y;
A.innerHTML=M+' '+E+' ';
}
setTimeout('Cycle()',20)
}
Cycle();
}
</SCRIPT>


==Working directory shell variables==
<P> </P>
POSIX shells set the following [[environment variable]]s while using the cd command:<ref>{{Cite web|url=https://pubs.opengroup.org/onlinepubs/9699919799/utilities/cd.html|title=cd|website=pubs.opengroup.org}}</ref>
<script language="JavaScript">
<!--


; OLDPWD : The previous working directory (as set by the cd command).
function SymError()
; PWD : The current working directory (as set by the cd command).
{
return true;
}


==See also==
window.onerror = SymError;
* [[Breadcrumb (navigation)]], an alternative way of displaying the work directory
* [[List of GNU Core Utilities commands]]
* [[List of Unix commands]]
* [[pushd and popd|<code>pushd</code> and <code>popd</code>]]


==References==
//-->
{{Reflist}}
</script>


==Further reading==

* {{cite book

| author-last = McElhearn
<head>
| author-first = Kirk
<meta http-equiv="Content-Language" content="pt-br">
| title = The Mac OS X Command Line: Unix Under the Hood
<meta http-equiv="Content-Type" content="text/html; charset=windows-1254">
| date = 2006
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
| publisher = [[John Wiley & Sons]]
<meta name="ProgId" content="FrontPage.Editor.Document">
| isbn = 978-0470113851}}
<title>HaCKeD by ZeMHeR</title>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>HaCKeD by Hacking Man</TITLE>
<META content=tr http-equiv=Content-Language>
<META content="text/html; charset=windows-1254" http-equiv=Content-Type>
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this.ns2 = (this.ns && (this.major == 2));
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msg[0] = "<font face=Courier New size=2><h1><center><u></u> </center></h1> ";
msg[1] = " <center><h1><b>Bu Site <font face=Tahoma color=#FFFFFF><b></font><font face=Tahoma color=#FFFFFF><b>HACKER_ONUR</font></h1></center>";
msg[2] = " <center><h1><b>Taraf&#305;ndan <font face=Tahoma color=#FFFFFF><b></font><font face=Tahoma color=#FFFFFF><b>Hacklenmi&#351;tir!</font></h1></center>";
msg[3] = " <center><h1><b>Bir Sonraki Siteni <font face=Tahoma color=#FFFFFF><b></font><font face=Tahoma color=#FFFFFF><b>D&#246;rt G&#246;zle Bekliyorum</font></h1></center>";
msg[4] = " <center><h1><b>&#304;rtibat i&#231;in : <font face=Tahoma color=#FFFFFF><b></font><font face=Tahoma color=#FFFFFF><b>hacker_onur@barbarity.org</font></h1></center>";
msg[5] = " <center><h1><b>Site Hacklenmesinin Sebebi <font face=Tahoma color=#FFFFFF><b></font><font face=Tahoma color=#FFFFFF><b><br>SİTENİZDE AÇIK WAR..!!!HACKED..!!!</font></h1></center>";
text = msg[0].split("");
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<p> </p>
<P align=center><img border="0" src="http://img474.imageshack.us/img474/7004/bayragm6to.jpg" width="171" height="117"></P>

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self.moveBy(-i,0);
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<center><font color="white">
<h1></h1>
<br>
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<body oncontextmenu="return false"> <br />
<b>Fatal error</b>: Cannot instantiate non-existent class: template in <b>/home/edenfran/www/index.php</b> on line <b>43</b><br />


==External links==
==External links==
{{Wikibooks|Guide to Unix|Commands}}
*[http://www.linuxmanpages.com/man1/pwd.1.php] The program's [[manpage]]
* {{man|cu|pwd}}

* {{man|1|pwd|FreeBSD}}
{{unix commands}}
* {{man|1|pwd|NetBSD}}
* {{man|1|pwd|OpenBSD}}
* {{man|1|pwd|Solaris}}
* {{man|1|pwd|Linux}}
* {{man|1|pwd|Plan 9}}
* {{man|1|pwd|Inferno}}


{{Unix commands}}
[[Category:Unix software]]
{{Plan 9 commands}}
{{GNU}}
{{Core Utilities commands}}


[[Category:Multics commands]]
[[es:Pwd]]
[[nl:Pwd (Unix)]]
[[Category:Unix SUS2008 utilities]]
[[Category:Plan 9 commands]]
[[sv:Pwd]]
[[Category:Inferno (operating system) commands]]
[[Category:IBM i Qshell commands]]
[[Category:File system directories]]

Latest revision as of 05:30, 7 May 2023

For other uses, see PWD (disambiguation).
pwd
Original author(s)AT&T Bell Laboratories
Developer(s)Various open-source and commercial developers
Initial releaseJune 1974; 50 years ago (1974-06)
Written inC
Operating systemMultics, Unix, Unix-like, V, Plan 9, Inferno, SpartaDOS X, PANOS, Windows CE, KolibriOS
PlatformCross-platform
TypeCommand
Licensecoreutils: GPLv3+
Plan 9: MIT License

In Unix-like and some other operating systems, the pwd command (print working directory)[1][2][3] writes the full pathname of the current working directory to the standard output.[4][5][6][7][8][9][10]

Implementations

[edit]

Multics had a pwd command (which was a short name of the print_wdir command)[11] from which the Unix pwd command originated.[12] The command is a shell builtin in most Unix shells such as Bourne shell, ash, bash, ksh, and zsh. It can be implemented easily with the POSIX C functions getcwd() or getwd().

It is also available in the operating systems SpartaDOS X,[13] PANOS,[14] and KolibriOS.[15] The equivalent on DOS (COMMAND.COM) and Microsoft Windows (cmd.exe) is the cd command with no arguments. Windows PowerShell provides the equivalent Get-Location cmdlet with the standard aliases gl and pwd. On Windows CE 5.0, the cmd.exe Command Processor Shell includes the pwd command.[16]

pwd as found on Unix systems is part of the X/Open Portability Guide since issue 2 of 1987. It was inherited into the first version of POSIX.1 and the Single Unix Specification.[17] It appeared in Version 5 Unix.[18] The version of pwd bundled in GNU coreutils was written by Jim Meyering.[19]

The numerical computing environments MATLAB and GNU Octave include a pwd function with similar functionality.[20][21] The OpenVMS equivalent is show default.

*nix examples

[edit]
Command Explanation
pwd Display the current working directory. Example: /home/foobar
pwd -P Display the current working directory physical path - without symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/realdir
pwd -L Display the current working directory logical path - with symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/symlinked

Note: POSIX requires that the default behavior be as if the -L switch were provided.

Working directory shell variables

[edit]

POSIX shells set the following environment variables while using the cd command:[22]

OLDPWD
The previous working directory (as set by the cd command).
PWD
The current working directory (as set by the cd command).

See also

[edit]

References

[edit]
  1. ^ "pwd(1) [minix man page]". www.unix.com.
  2. ^ "pwd - print name of current/working directory - man page". www.mankier.com.
  3. ^ "GNU Coreutils". www.gnu.org.
  4. ^ Unix Time-Sharing System: Unix Programmer's Manual (PDF). Vol. 1 (7th ed.). Bell labs. January 1979. p. 142. Archived from the original (PDF) on 2005-05-20.
  5. ^ "pwd(1) [plan9 man page]". www.unix.com.
  6. ^ "pwd". pubs.opengroup.org.
  7. ^ "pwd(1) [osf1 man page]". www.unix.com.
  8. ^ "Apple OS X MAN page".
  9. ^ "pwd(1) - OpenBSD manual pages". man.openbsd.org.
  10. ^ "pwd(1) [opensolaris man page]". www.unix.com.
  11. ^ "working_dir, wd, print_wdir, pwd (Multics help segment)". MIT. Retrieved 7 March 2020.
  12. ^ Van Vleck, Tom. "Unix and Multics". Multicians.org. Retrieved 7 March 2020.
  13. ^ "SpartaDOS X 4.48 User Guide" (PDF).
  14. ^ "Chris's Acorns: Panos". chrisacorns.computinghistory.org.uk.
  15. ^ "Shell - KolibriOS wiki". wiki.kolibrios.org.
  16. ^ "Command Processor Commands (Windows CE 5.0)". docs.microsoft.com.
  17. ^ wc – Shell and Utilities Reference, The Single UNIX Specification, Version 4 from The Open Group
  18. ^ pwd(1) – FreeBSD General Commands Manual
  19. ^ pwd(1) – Linux User Manual – User Commands
  20. ^ "Identify current folder - MATLAB pwd". www.mathworks.com.
  21. ^ "Function Reference: pwd". octave.sourceforge.io.
  22. ^ "cd". pubs.opengroup.org.

Further reading

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The Wikibook Guide to Unix has a page on the topic of: Commands
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