Reupload of an old SA:MP plugin that execute shell commands and return the output.
Was originally made by Killerkid and found in this SA:MP forums backup.
It's untested and, as it doesnt include any license file, consider it an ARR software - All Rights Reserved, in case for Killerkid himself.
From his description of how to use it:
#include <system>
new string[13];
system("echo Hello World!", string, sizeof(string)); // 'string' now contains the output
printf(string);
Will print Hello World!.