RunProcess seemingly does not work on my Windows system

Question

System: Windows 10 professional. Mathematica Version: 10.3.0 English.

RunProcess doesn't work in my computer as described in tutorial.

The right result the function should give:

I tried different RunProcess examples given in the documentation and it seems that most of them work on Windows not as expected. For instance:

RunProcess[$SystemShell, All, "echo example line 1
 echo example line 2
 exit
 "]

Outcome as follows:

<|"ExitCode" -> 0, 
 "StandardOutput" -> 
  "Microsoft Windows [\[Degree]æ\[PlusMinus]¾ 10.0.10586]
(c) 2015 Microsoft Corporation¡£[PlusMinus]Some text...
C:\Users\Veya\Documents>echo example line 1
  example line 1
C:\Users\Veya\Documents>echo example line 2
  example line 2
C:\Users\Veya\Documents>exit
  ", "StandardError" -> ""|>

And it should be shorter:

<|"ExitCode" -> 0, "StandardOutput" -> "example line 1
  example line 2
  ", "StandardError" -> ""|>

Question: What am I doing wrong? Are problems due to my Windows settings? How can I get results looking as described in the documentation?

---

Why I need RunProcess

I want to use MaTex in Mathematica; it is based on RunProcess.

---

Addition:

I've also directly tried Environment command from documentation but get $Failed.

 Environment["HOME"]
> $Failed

Answer 1

Your RunProcess works properly in all examples and System settings are fine. As @Oleksandr R. has admitted, date is a shell builtin on Windows. So there are commands date /t and time /t in cmd Windows shell that can be used instead.

In Mathematica for Windows:

$SystemShell == "cmd"
(* True *)

So something like:

RunProcess[{"cmd", "/c", "date /t&&time /t"}]

gives

<|"ExitCode" -> 0, "StandardOutput" -> "30.11.2015
23:17
", "StandardError" -> ""|>

Compare:

---

Your code from documentation

RunProcess[$SystemShell, All, "echo example line 1
 echo example line 2
 exit
 "]

also gave you the right output (as it looks in Windows cmd shell). Just compare your output with the screen:

(I've used Win+R and cmd /k cls to avoid information about OS.)

If you want to avoid intermediate lines from shell that seem puzzled you, try something similar to this:

RunProcess[{"cmd", "/k", 
  "cls&&echo example line 1&&echo example line 2&&exit"}]

or this (note, that key /k needs exit to stop RunProcess):

RunProcess[{"cmd", "/c", 
  "cls&&echo example line 1&&echo example line 2"}]

<|"ExitCode" -> 0, "StandardOutput" -> "
example line 1
example line 2
", "StandardError" -> ""|>

---

Concerning addition (most likely):

Environment["HOMEPATH"]

\Users\Acer

Note that RunProcess[{'*command*', ...}] in the command place expects binary file which is visible (by explicit path or Environment). To see all Environment variables one may use

First /@ GetEnvironment[]