The optional TERRenviron files can contain the definitions of environment variables to specify such customizations as JAVA_HOME and the project directory for TERR. TERRenviron is the first file run in a customized TERR startup.

TERRenviron files can be defined in two places:

• The site-specific file in TERR_HOME (for example, in etc/TERRenviron.site)
• The user-specific file in ./.TERRenviron (or in ~/.TERRenviron if ./.TERRenviron does not exist).

You can define environment variables for the TERR session using bash-like syntax in the TERRenviron files. Typical lines are as follows.

VAR_NAME="variable's value"
ETC_PATH=${TERR_HOME}/etc
VAR_WITH_DEFAULT=${VAR_WITH_DEFAULT-"var's default value"}

• The syntax ${VAR_NAME} specifies that ${VAR_NAME} should be replaced with the value of the environment variable VAR_NAME. If the environment variable is not defined, it should be replaced with an empty string.
• The syntax ${VAR_WITH_DEFAULT-"var's default value"} specifies that ${VAR_NAME-"var's default value"} should be replaced with the value of the environment variable VAR_NAME if VAR_NAME is defined. Otherwise, it should be replaced with "var's default value".

If you want to start a session and bypass running the TERRenviron files, you can use one of the following techniques.

• Use the command line option --no-environ.
• Use the command-line option --vanilla.

JAVA_HOME="C:/Program Files/Java/jre11"