static void var(core::String& name, core::String& value)
{
if(core::nil == value)
{
auto result = ::unsetenv(name.ascii());
core::certify(!result);
}
else
{
auto result = ::setenv(name.ascii(), value.ascii(), true);
core::certify(!result);
}
}
static core::String var(core::String& name)
{
auto env = ::getenv(name.ascii());
return env
? core::String(env)
: core::nil;
}
static core::int64 execute(core::String& command)
{
return ::system(command.ascii());
}