Haskell: getTemporaryDirectory: Get the directory for temporary files

System.Directory module provides getTemporaryDirectory function, which returns the directory for temporary files

Prelude System.Directory> :t getTemporaryDirectory

getTemporaryDirectory :: IO FilePath

Prelude System.Directory>

Prelude System.Directory> getTemporaryDirectory

"/var/folders/1x/9q4yr4k15csf564llfcz3c1h7n6wlv/T/"

Note

a.   On Unix kind of systems this function return the value stored in environment variable TMPDIR.

$ echo $TMPDIR

/var/folders/1x/9q4yr4k15csf564llfcz3c1h7n6wlv/T/

If the environment variable don’t exist, it return ‘/tmp’.

b. On Windows, the function checks for the existence of   environment variables in the following order and uses the first path found:

1.   TMP environment variable.

2.   TEMP environment variable.

3.   USERPROFILE environment variable.

4.   The Windows directory

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