GETENV— Get an environmental variable
Get the VALUE of the environmental variable NAME.
This intrinsic routine is provided for backwards compatibility with GNU Fortran 77. In new code, programmers should consider the use of the GET_ENVIRONMENT_VARIABLE intrinsic defined by the Fortran 2003 standard.
GETENV need not be thread-safe. It is the
responsibility of the user to ensure that the environment is not being
updated concurrently with a call to the
CALL GETENV(NAME, VALUE)
|NAME||Shall be of type |
|VALUE||Shall be of type |
Stores the value of NAME in VALUE. If VALUE is not large enough to hold the data, it is truncated. If NAME is not set, VALUE will be filled with blanks.
PROGRAM test_getenv CHARACTER(len=255) :: homedir CALL getenv("HOME", homedir) WRITE (*,*) TRIM(homedir) END PROGRAM