Finding environmental variables

For R, we can use the Sys.getenv() function to find all environmental variables:

To save space, only the top part is shown. Again, different users will get different results. For Python, we use the following commands:

import sys
sys.path 

The top part of the output is shown here:

For Julia, we use the ENV function, as in the following:

For Octave, we can use the getenv() function, as shown:

>> getenv('path') 
ans = C:OctaveOctave-4.0.0bin;C:Program FilesSilverfrostFTN95;C:Perlsitebin;C:Perlbin;C:windowssystem32;C:windows;C: 
windowsSystem32Wbem;C:windowsSystem32WindowsPowerShellv1.0;C:Program FilesIntelOpenCL SDK2.0binx86;C:Program Files 
Common FilesRoxio SharedDLLShared;C:Program FilesCommon FilesRoxio Shared10.0DLLShared;C:Program FilesMATLABR2013abin 
;C:Anaconda;C:AnacondaScripts;C:Program FilesWindows Kits8.1Windows Performance...