Preklopeni binarniho souboru do TXT
hwnews konference
hwnews na cncnet.info
Pátek Leden 27 15:26:19 CET 2017
no ja jsem to take nevydrzel...a napsal si to po svojem:
<?php
$soubor1=$_GET["soubor"];
$soubor2="./data/".$soubor1;
echo $soubor2;
$poc=0;
$byteArray=array();
$fsize = filesize($soubor2);
echo ".....velikost: ".$fsize;
echo "<br>";
$handle = fopen($soubor2, "r");
while (!feof($handle)) {
$pom = fread($handle,1);
$poc++;
$byteArray[$poc] = $pom;
//echo $byteArray[$poc];
}
fclose($handle);
$poc--;
$poc2=0;
$handle = fopen("./data/".$soubor1.".txt", "w");
while ($poc>0) {
$fwrite = fwrite($handle, ord($byteArray[$poc]));
$fwrite = fwrite($handle, ',');
if ($poc2==31) {
$fwrite = fwrite($handle,"\r\n");
$poc2=0;
}
$poc2++;
$poc--;
}
fclose($handle);
?>
Dne 27. ledna 2017 10:51 Jindroush <jindroush na seznam.cz> napsal(a):
> Pravda. Vtip je v tom, ze ten soubor se nacte po 'radkach', nikoli jako
> jeden binarni blob, takze pak se to reverse dela v ramci radku...
>
> Nevim, jak to v tom onelineru fixnout.
> J.
>
>
> On 27.1.2017 10:08, Tom Meinlschmidt wrote:
>
>> zkuste sam..
>>
>> dd if=/dev/random of=file.txt bs=1024 count=64
>> cat file.txt | perl -ne "print join(',',reverse(unpack('C*',$_)));"
>>
>> a ted pro porovnani
>> hexdump file.txt | head -1
>>
>> ja dostanu z perlu:
>> ...,246,84,216,25,165,38,166,71,37,97,194,240,197,50,33,213,
>> 201,79,242,13,74,191,255,208,145(EOF)
>>
>>
>> a z hexdumpu
>> 0000000 8c 58 a8 b2 55 dd c6 02 7b 59 79 ea 01 ba 98 9d
>>
>> resp
>> hexdump -v -e '16/1 "%03u " "\n"' file.txt |head -1
>> 140 088 168 178 085 221 198 002 123 089 121 234 001 186 152 157
>>
>> coz proste nesedi s tim perlem. Perl by mel koncit na 088 140...
>>
>> tm
>>
>> On 2017-01-27 08:30, Jindroush wrote:
>>
>>> Proc, co je v nem blbe? Proste vezme vstup a vypise ho jako dec cisla
>>> oddelena carkou, tak jsem pochopil zadani, na linuxu by nemelo vadit
>>> nejaky hrani s binary a tak...
>>>
>>> On 27.1.2017 0:23, Tom Meinlschmidt wrote:
>>>
>>>> chyba.
>>>>
>>>> ma byt hexdump -v -e '/1 "%03d" " “‘ … a "od -An -tuC"
>>>>
>>>> jinak to bylo v osmickove..
>>>>
>>>> btw - ten perl taky nefunguje spravne...
>>>>
>>>> tm
>>>>
>>>> On Jan 27, 2017, at 0:02 , Tom Meinlschmidt <hw na meinlschmidt.org>
>>>>> wrote:
>>>>>
>>>>> test - 64kB soubor (data z /dev/random)
>>>>>
>>>>> cat file.txt | hexdump -v -e '/1 "%03o" "\n"' | tac | xargs -n8 | tr
>>>>> ' ' ','
>>>>>
>>>>> real 0m26.837s
>>>>> user 0m7.769s
>>>>> sys 0m11.485s
>>>>>
>>>>> bez zarovnavani na 8 sloupcu
>>>>>
>>>>> cat file.txt | hexdump -v -e '/1 "%03o" " "' | tac -s’ ‘ | tr ‘ ‘ ‘,'
>>>>>
>>>>> real 0m0.333s
>>>>> user 0m0.048s
>>>>> sys 0m0.022s
>>>>>
>>>>> nebo
>>>>>
>>>>> cat file.txt | od -An -b | cut -c 2- | tr ' ' '\n' | tac | xargs -n8
>>>>> | tr ' ' ','
>>>>>
>>>>> real 0m28.978s
>>>>> user 0m8.125s
>>>>> sys 0m12.093s
>>>>>
>>>>> nebo
>>>>>
>>>>> cat file.txt | od -An -b | cut -c 2- | tr '\n' ' ' | tac -s ' ' | tr
>>>>> ' ' ‘,'
>>>>>
>>>>> real 0m0.404s
>>>>> user 0m0.051s
>>>>> sys 0m0.028s
>>>>>
>>>>> tm
>>>>>
>>>>> On Jan 26, 2017, at 22:05 , Admin HWnews <hwnews na cncnet.info> wrote:
>>>>>>
>>>>>> Hmm prisel jsem na dalsi spek....
>>>>>>
>>>>>> Ja bych ten soubor potreboval jeste prevratit...tedy aby posledni
>>>>>> bajt byl prvni. Nejakej napad?
>>>>>>
>>>>>> Prece to nebudu prohanet pres tabulku v DB...
>>>>>>
>>>>>> RV
>>>>>>
>>>>>>
>>>>>> Dne 24.1.2017 v 17:51 Tom Meinlschmidt napsal(a):
>>>>>>
>>>>>>> odvolavam, co jsem neslibil. mate pravdu - potrebuje to -v
>>>>>>> tm
>>>>>>>
>>>>>>> On Jan 24, 2017, at 17:37 , Tom Meinlschmidt
>>>>>>>> <hw na meinlschmidt.org> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> ? bash?
>>>>>>>>
>>>>>>>> $ printf 'e\0\0\0cho a\0\0b\n' | hexdump -v -e '/1 "%03o" "\n"' |
>>>>>>>> xargs -n8 | tr ' ' ','
>>>>>>>> 145,000,000,000,143,150,157,040
>>>>>>>> 141,000,000,142,012
>>>>>>>>
>>>>>>>> tm
>>>>>>>>
>>>>>>>> On 2017-01-24 17:24, Petr Simek wrote:
>>>>>>>>
>>>>>>>>> On Tue, 24 Jan 2017, Tom Meinlschmidt wrote:
>>>>>>>>>
>>>>>>>>>> co treba
>>>>>>>>>> hexdump -e '/1 "%03o" "\n"' /bin/bash | xargs -n8 | tr ' ' ','
>>>>>>>>>>
>>>>>>>>> Kdyz jsou v souboru dve nuly za sebou tak to prvni vypise jako
>>>>>>>>> 060 a
>>>>>>>>> tu druhou jako * .
>>>>>>>>>
>>>>>>>>>> tm
>>>>>>>>>>
>>>>>>>>> *-----------------------------------------------------------
>>>>>>>>> -------------*
>>>>>>>>>
>>>>>>>>> | Petr Simek APS
>>>>>>>>> JU |
>>>>>>>>> |
>>>>>>>>> psimek na jcu.cz |
>>>>>>>>> *-----------------------------------------------------------
>>>>>>>>> -------------*
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> HW-list mailing list - sponsored by www.HW.cz
>>>>>>>>> Hw-list na list.hw.cz
>>>>>>>>> http://list.hw.cz/mailman/listinfo/hw-list
>>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> HW-list mailing list - sponsored by www.HW.cz
>>>>>>>> Hw-list na list.hw.cz
>>>>>>>> http://list.hw.cz/mailman/listinfo/hw-list
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>> HW-list mailing list - sponsored by www.HW.cz
>>>>>> Hw-list na list.hw.cz
>>>>>> http://list.hw.cz/mailman/listinfo/hw-list
>>>>>>
>>>>>
>>>>> --
>>>>> ============================================================
>>>>> ===================
>>>>>
>>>>> Tomas Meinlschmidt, MS {MCT, MCP+I, MCSE, AER}, NetApp Filer/NetCache
>>>>>
>>>>> www.meinlschmidt.com www.maxwellrender.cz
>>>>> ============================================================
>>>>> ===================
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> HW-list mailing list - sponsored by www.HW.cz
>>>>> Hw-list na list.hw.cz
>>>>> http://list.hw.cz/mailman/listinfo/hw-list
>>>>>
>>>>
>>>> _______________________________________________
>> HW-list mailing list - sponsored by www.HW.cz
>> Hw-list na list.hw.cz
>> http://list.hw.cz/mailman/listinfo/hw-list
>>
>
>
> --
> Jindroush <jindroush na seznam.cz>
>
> _______________________________________________
> HW-list mailing list - sponsored by www.HW.cz
> Hw-list na list.hw.cz
> http://list.hw.cz/mailman/listinfo/hw-list
>
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