Setting Environment Variables in an Environment-Configuration File The environment-configuration file is a common or private file where you can define all the environment variables that are used by Informix products. Using an environment-configuration file reduces the number of environment variables that you must set at the command line or in a shell file. The common (shared) environment-configuration file resides in the $INFORMIXDIR/etc/informix.rc file. The permission for this shared file must be set to 644. A user can override the system or common environment variables by setting variables in a private environment-configuration file. The private environment-configuration file must have the following characteristics:
644
#
The first time you set an environment variable in a shell file or configuration file, before you work with your Informix product you should source the file (if you are using a C shell) or use a period (.) to execute an environment-configuration file (if you are using a Bourne or Korn shell). This procedure tells the shell process to read your entry. Setting Environment Variables at Login Time When you set an environment variable in your .login, .cshrc, or .profile file, it is assigned automatically every time you log in to the system. Add the commands that set your environment variables to the following login file:
For the C shell
.login or .cshrc
For the Bourne shell or Korn shell
.profile
