aviso: a palestra do dia 25 de Outubro conta agora com mais de 60 inscritos e a capacidade do auditório é de 98 pessoas. Inscreva-se em:
http://www.pcs.usp.br/~jkinoshi/cce.html
O comando mcopy copia arquivos de/para o floppy (formato DOS) sem a necessidade do "mount".
Ao fazer a cópia, o "mcopy" altera a data do arquivo para a data da cópia.
Faça:
<![CDATA[
mcopy -m a:A B
]]>
para preservar a data em ./B
Para facilitar, coloque em .bashrc:
<![CDATA[
alias mcopy='mcopy -m '
]]>
Pergunta mais recente em: http://www.pcs.usp.br/cgi-bin/jkinoshi/ve.cgi:
21-10-00 Existe alguma ferramenta no Linux que descomprima arquivos ".arj"?
Curiosidade :)
TESTE: Em que categoria você se enquadra?
recebido de Luiz Kobayashi.
Colegial / Técnico:
10 PRINT "HELLO WORLD"
20 END
Bixo:
program Hello(input, output)
begin
writeln('Hello World')
end.
Optante de Computação:
(defun hello
(print
(cons 'Hello (list 'World))))
Profissional Recém-Formado:
#include
void main(void)
{
char *message[] = {"Hello ", "World"}; int i;
for (i = 0; i < 2; ++i)
printf("%s", message[i]);
printf("\n");
}
Programador Sênior:
#include
#include
class string
{
private:
int size;
char *ptr;
public:
string():size(0), ptr(new char('\0')){}
string(const string &s):size(s.size) {
ptr = new char[size + 1];
strcpy(ptr, s.ptr);
}
~string()
{
delete [] ptr;
}
friend ostream &operator <<(ostream &, const string
&);
string &operator =(const char *);
};
ostream &operator <<(ostream &stream, const string &s)
{
return (stream << s.ptr);
}
string &string::operator =(const char *chrs) {
if (this != &chrs)
{
delete [] ptr;
size = strlen(chrs);
ptr = new char[size + 1];
strcpy(ptr, chrs);
}
return(*this);
}
int main()
{
string str;
str = "Hello World";
cout << str << endl;
return(0);
}
Programador Master:
[
uuid(2573F8F4-CFEE-101A-9A9F-00AA00342820)
]
library LHello
{
// bring in the master library
importlib("actimp.tlb");
importlib("actexp.tlb");
// bring in my interfaces
#include "pshlo.idl"
[
uuid(2573F8F5-CFEE-101A-9A9F-00AA00342820)
]
cotype THello
{
interface IHello;
interface IPersistFile;
};
};
[
exe,
uuid(2573F890-CFEE-101A-9A9F-00AA00342820)
]
module CHelloLib
{
// some code related header files
importheader();
importheader();
importheader();
importheader("pshlo.h");
importheader("shlo.hxx");
importheader("mycls.hxx");
// needed typelibs
importlib("actimp.tlb");
importlib("actexp.tlb");
importlib("thlo.tlb");
[
uuid(2573F891-CFEE-101A-9A9F-00AA00342820),
aggregatetable
]
coclass CHello
{
cotype THello;
};
};
#include "ipfix.hxx"
extern HANDLE hEvent;
class CHello:public CHelloBase
{
public:
IPFIX(CLSID_CHello);
CHello(IUnknown *pUnk);
~CHello();
HRESULT __stdcall PrintSz(LPWSTR pwszString);
private:
static int cObjRef;
};
#include
#include
#include
#include
#include "thlo.h"
#include "pshlo.h"
#include "shlo.hxx"
#include "mycls.hxx"
int CHello::cObjRef = 0;
CHello::CHello(IUnknown *pUnk):CHelloBase(pUnk) {
cObjRef++;
return;
}
HRESULT __stdcall CHello::PrintSz(LPWSTR pwszString) {
printf("%ws\n", pwszString);
return (ResultFromScode(S_OK));
}
CHello::~CHello(void)
{
// when the object count goes to zero, stop the server
cObjRef--;
if (cObjRef == 0)
PulseEvent(hEvent);
return;
}
#include
#include
#include "pshlo.h"
#include "shlo.hxx"
#include "mycls.hxx"
HANDLE hEvent;
int _cdecl main(int argc, char *argv[]) {
ULONG ulRef;
DWORD dwRegistration;
CHelloCF *pCF = new CHelloCF();
hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
// Initialize the OLE libraries
CoInitializeEx(NULL, COINIT_MULTITHREADED);
CoRegisterClassObject(CLSID_CHello, pCF,
CLSCTX_LOCAL_SERVER,
REGCLS_MULTIPLEUSE, &dwRegistration);
// wait on an event to stop
WaitForSingleObject(hEvent, INFINITE);
// revoque and release the class object
CoRevokeClassObject(dwRegistration);
ulRef = pCF->Release();
// Tell OLE we are going away
CoUninitialize();
return(0);
}
extern CLSID CLSID_CHello;
extern UUID LIBID_CHelloLib;
CLSID CLSID_CHello = {/*
2573F891-CFEE-101A-9A9F-00AA00342820*/
0x2573F891,
0xCFEE,
0x101A,
{0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20}
};
UUID LIBID_CHelloLib = {/*
2573F890-CFEE-101A-9A9F-00AA00342820 */
0x2573F890,
0xCFEE,
0x101A,
{0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20}
};
#include
#include
#include
#include
#include
#include "pshlo.h"
#include "shlo.hxx"
#include "clsid.h"
int _cdecl main(int argc, char *argv[]) {
HRESULT hRslt;
IHello *pHello;
ULONG ulCnt;
IMoniker *pmk;
WCHAR wcsT[_MAX_PATH];
WCHAR wcsPath[2 *_MAX_PATH];
// get object path
wcsPath[0] = '\0';
wcsT[0] = '\0';
if (argc > 1)
{
mbstowcs(wcsPath, argv[1], strlen(argv[1]) + 1);
wcsupr(wcsPath);
}
else
{
fprintf(stderr, "Object path must be specified\n");
return(1);
}
// get print string
if (argc > 2)
mbstowcs(wcsT, argv[2], strlen(argv[2]) + 1);
else
wcscpy(wcsT, L"Hello World");
printf("Linking to object %ws\n", wcsPath);
printf("TextString %ws\n",
wcsT);
// Initialize the OLE libraries
hRslt = CoInitializeEx(NULL, COINIT_MULTITHREADED); if
(SUCCEEDED(hRslt))
{
hRslt = CreateFileMoniker(wcsPath, &pmk); if
(SUCCEEDED(hRslt))
hRslt = BindMoniker(pmk, 0, IID_Hello, (void
**)&pHello);
if (SUCCEEDED(hRslt))
{
// print a string out
pHello->PrintSz(wcsT);
Sleep(2000);
ulCnt = pHello->Release();
}
else
printf("Failure to connect, status: %lx", hRslt);
// Tell OLE we are going away
CoUninitialize();
}
return(0);
}
Hacker Novato:
#!/usr/local/bin/perl
$msg="Hello, world.\n";
if ($#ARGV >= 0)
{
while(defined($arg=shift(@ARGV)))
{
$outfilename=$arg;
open(FILE, ">".$outfilename) || die"Can't write
$arg:$!\n"; print(FILE $msg);
close(FILE) || die "Can't close $arg:$!\n";
}
}
else
{
print($msg);
}
1;
Hacker Experiente:
#include
#define S "Hello, World\n"
main(){exit(printf(S) == strlen(S)?0:1);}
Hacker Tarimbado:
%cc -o a.out ~/src/misc/hw/hw.c
%a.out
Hacker Guru:
%cat
Hello, world.
^D
Gerente Júnior:
10 PRINT "HELLO WORLD"
20 END
Gerente Sênior:
mail -s "Hello, world". ze@b12
Ei, serah que voce poderia me escrever um programa que
imprime "Hello, world"? Preciso disso para amanha.
^D
Gerente Master:
%zmail jim
Preciso de um programa "Hello, world" agora para a
tarde.
CEO:
%letter
letter: Command not found.
%mail
To ^X^F^C
%help mail
help: Command not found.
%droga!
!: Event unrecognized
%logout
^JC