Installation and Configuration Guide > Part II: Before You Install the Services > Before You Begin > Review the Environment Variables
  

Review the Environment Variables

Configure the environment variables to work with the Informatica installation.
The following table describes the environment variables to review on Linux:
Variable
Description
IATEMPDIR
Location of the temporary files created during installation. Informatica requires 1 GB disk space for temporary files.
Configure the environment variable if you do not want to create temporary files in the /tmp directory.
INFA_DOMAINS_FILE
Contains the location of the domains.infa file. Clear this variable before you start the upgrade.
INFA_HOME
Contains the location of the Informatica installation directory. Clear this variable before you start the upgrade.
LANG and LC_ALL
Change the locale to set the appropriate character encoding for the terminal session. For example, set the encoding to Latin1 or ISO-8859-1 for French, EUC-JP or Shift JIS for Japanese, or UTF-8 for Chinese or Korean. The character encoding determines the types of characters that appear in the UNIX terminal.
DISPLAY
Unset the DISPLAY environment before you run the installer. Installation might fail if the DISPLAY environment variable has some value.
Library path
Verify that the library path environment variables do not contain earlier versions of Informatica.
PATH
The installer appends file paths required by Informatica to the PATH environment variable. Verify that the length of the PATH environment variable does not exceed the system limits.
Verify that the PATH environment variables do not contain earlier versions of Informatica.