(getenv variable)


Determine the value of the operating system variable.


This function returns the value of a specified operating system environment variable-for example, as stored by the DOS PATH variable. If the variable exists, its value is returned as a string; if it does not exist, nil is returned.

Examples

Code Returns
(getenv "PATH") C:\\;C:\\WIN95;C:\\ICAD
(getenv "junk") nil

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(getcfg parameter)

(getvar sysvar)

(setenv variable value)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language