eval
Passes the string str to the DIESEL evaluator and returns the result of
evaluating it.$(eval,str)Quick Reference
System VariablesMENUECHOSets menu echo and prompt control bits.fix
Truncates the real number value to an integer by discarding any fractional
part.$(fix,value)Quick Reference
System VariablesMENUECHOSets menu echo and prompt control bits.getenv
Returns the value of the environment variable varname.$(getenv,varname)If no variable with that name is defined, it returns the null string.338 | Chapter 5 DIESEL