In the world of Pwd, there is a wide range of opinions and perspectives that can be approached from different angles. From its impact on society to its relevance in history, Pwd has been the subject of study and controversy over time. In this article, we will explore the various facets of Pwd, analyzing its influence in different contexts and its role in everyday life. Additionally, we will examine how Pwd has evolved over time and what the future holds for it in an increasingly changing world. Through this exhaustive analysis, we aim to shed light on a topic that remains relevant and exciting to a wide spectrum of people.
Original author(s) | AT&T Bell Laboratories |
---|---|
Developer(s) | Various open-source and commercial developers |
Initial release | June 1974 |
Written in | C |
Operating system | Multics, Unix, Unix-like, V, Plan 9, Inferno, SpartaDOS X, PANOS, Windows CE, KolibriOS |
Platform | Cross-platform |
Type | Command |
License | coreutils: 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]
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
.
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.
POSIX shells set the following environment variables while using the cd command:[22]
pushd
and popd