---
title: 3.8.1 Working Directory
description: "# Step1: Change Working Directory for PM Data Installation During the **PM Data Installation** we will be working with the **Pmdata directory**. Within this directory are the files we will be editing to define the database properties, create the PM…"
url: "https://i2b2.org/docs/3-8-1-working-directory/"
updated: "2026-09-15"
category: i2b2 Installation Guide / Chapter 3. Data Installation / 3.8 PM Tables
---

# 3.8.1 Working Directory

# Step1: Change Working Directory for PM Data Installation

During the **PM Data Installation** we will be working with the **Pmdata directory**. Within this directory are the files we will be editing to define the database properties, create the PM tables and triggers as well as load the sample data provided with the data package.

To change your working directory to the Pmdata directory enter the following command:

  **Change Directory Command**

CD ***YOUR_I2B2_DATA_DIR***\edu.harvard.i2b2.data\Release_1-7\NewInstall\Pmdata

Important

The change directory command shown above is written for Windows. The command itself is the same for both Linux and Windows with the only exceptions being the slashes in the path name and Linux does not include the "drive".

- *Linux Path:* use a forward slash.
- *Windows Path:* use a backward slash.

***EXAMPLES:***

***Windows Command:***  CD C:\opt\data\edu.harvard.i2b2.data\Release_1-7\NewInstall\Pmdata

***Linux Command:***  CD /opt/data/edu.harvard.i2b2.data/Release_1-7/NewInstall/Pmdata