Re: very short pipeShell program

[Ali Çehreli via Digitalmars-d-learn]

On 06/22/2014 05:01 PM, WhatMeWorry wrote:

After hours of reading (obviously not comprehending) std.process and
looking at code samples, I still can't even do something this simple.
Open a Windows command line and run miscellaneous commands. Only the
first command, dir" is shown in the final output.

auto pipe = pipeShell("dir", Redirect.all);

pipe.stdin.writeln("cd");
pipe.stdin.writeln("whomai");

Typo: whoami

pipe.stdin.flush();
pipe.stdin.close();

foreach(str; pipe.stdout.byLine)
     writefln("from shell: %s",str);


I tried putting the wait() command was well in various places. to no avail.



As I understand it, the returned 'pipe' is used to communicate with the 
command passed to pipeShell. Since 'dir' does not understand 'cd', 
'whoami', etc. it fails for you.

I tried the following on Linux and it worked. I think you must replace 
"bash" with "cmd" on Windows:

import std.stdio;
import std.process;

void main()
{
    auto pipe = pipeShell("bash", Redirect.all);

    pipe.stdin.writeln("dir");
    pipe.stdin.writeln("cd");
    pipe.stdin.writeln("whoami");
    pipe.stdin.flush();
    pipe.stdin.close();

    foreach(str; pipe.stdout.byLine)
        writefln("from shell: %s",str);
}

Ali