When making changes to modules within PITSS.CON, the original modules are backed up into the old directory in the PITSS user’s directory location when the updated modules are loaded back into PITSS.CON. In Linux, there have been cases where the modules are not backed up into this directory at all. This is because of an incomplete PATH environment variable set in the PITSS-related .env files. Inside your .env files for PITSS.CON, this is the case if the following is set for PATH:

PATH=$ORACLE_HOME/bin:$ORACLE_HOME/jdk/bin

You will need to add the following string to the end of the current PATH variable:
:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/install_user/bin

After saving the changes, your PATH environment variable should look similar to this in the PITSS related .env files:
PATH=$ORACLE_HOME/bin:$ORACLE_HOME/jdk/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/install_user/bin

NOTE: $ORACLE_HOME is the path to the Oracle Home directory and “install_user” is the name of the user who installed WebLogic, Forms, and PITSS.CON.