How to execute external program and process its output?

[Marcin Kuszczak]

Tom S wrote:

> Marcin Kuszczak wrote:
>> Pragma wrote:
>> 
>>> char[] commandline = "echo 'hello world' > output.txt";
>>> std.process.system(commandline);
>>> writefln("result: %s",std.file.read("output.txt"));
>> 
>> I had to modify a little bit program, but then it works - thanks a lot!
>> 
>> --
>> void main() {
>>   char[] commandline = "svn info >output.txt 2>&1";
>>   std.process.system(commandline);
>>   char[] result = cast(char[])(std.file.read("output.txt"));
>>   writefln("result: %s", result);
>> }
>> --
>> 
>> In the meantime I found also that there should be functions on C API
>> 
>> --
>> #include <stdio.h>
>> FILE *popen( const char *command, const char *type);
>> int pclose( FILE *stream);
>> --
>> 
>> but as I see it is not wrapped by D. I don't have any idea how to do it.
>> If anyone can give some more info it would be great.
> 
> extern (C) {
>      typedef void FILE;
>      FILE* popen(char* cmd, char* type);
>      int pclose(FILE* stream);
> }
> 
> should work

Thanks! using C was easier than I thought...

(Second method still does not work for me, but it is just a mater of
time :-) )

-- 
Regards
Marcin Kuszczak
(Aarti_pl)