Linux / Unix Shell Script: Get The Current Directory

by on April 9, 2013 · 1 comment· LAST UPDATED April 9, 2013

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I am working on a shell script. I need to find out the current working directory. How do I get the current working directory under Bash or Ksh shell running on Linux or Unix like operating systems?

You can use shell variable called PWD or pwd built-in command to get the current working directory. The cd command sets the following shell variable:
Tutorial details
DifficultyEasy (rss)
Root privilegesNo
RequirementsBash/Ksh
Estimated completion timeN/A

[a] OLDPWD The previous working directory as set by the cd command.

[b] PWD The current working directory as set by the cd command.

[c] pwd command - Print the name of the current working directory.

Syntax

The syntax is:

 
echo "The current working directory: $PWD"
echo "The previous current working directory: $OPLDPWD"
_cwd="$PWD"
 
## use pwd command ##
_mydir="$(pwd)"
 
## or ##
_mydir="`pwd`"
 
echo "My working dir: $_mydir"
 

Shell script example

The following script use $PWD twice to set default and provide information to the sys admins.

 
#!/bin/bash
# Purpose: Set file permission to read-only
# Author: nixCraft <www.cyberciti.biz> under GPL v2.0+
# ---------------------------------------------------------------
# DocumentRoot permissions 
_dp="0544"
_fp="0444"
_sp="0744"
 
# Apache user/group
_user="www-data"
_group="www-data"
 
## If $1 is not passed, set to the current working dir using $PWD
_dir="${1:-${PWD}}"
 
## Die if $dir does not exists
[ ! -d "$_dir" ] && { echo "Error: Directory $_dir not found."; exit 2; }
 
## Get confirmation 
echo "I will change file permission for the webserver dir and files to restrictive read-only mode."
read -p "The current working dir is ${PWD}. Are you sure (y / n) ?" ans
 
## Lowercase $ans and compare it 
if [ "${ans,,}" == "y" ]
then
      chown -R ${_user}:${_group} "$_dir"
      chmod -R $_fp "$_dir"
fi
 
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{ 1 comment… read it below or add one }

1 Kumar September 26, 2013 at 6:14 am

i want Unix Shell Script: Get The full Directory path.

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