# Striim 3.9.8 documentation

### Using environment variables in source and target properties

Source and target property values may include environment variables:

• Prepend the value with $ to indicate that it is a variable (for example, $ACCESSLOGPATH).

• You may optionally add a default value, separated by a colon, to be used if the shell variable is not set (for example, \$ACCESSLOGFILE:access_log).

Environment variables are set when Striim is started. Any change to environment variable values will have no effect until Striim is restarted.