Preklopeni binarniho souboru do TXT

[Tom Meinlschmidt]

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                              |
>>>>> *------------------------------------------------------------------------*
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> 
> -- 
> ===============================================================================
> Tomas Meinlschmidt, MS {MCT, MCP+I, MCSE, AER}, NetApp Filer/NetCache
> 
> www.meinlschmidt.com  www.maxwellrender.cz 
> ===============================================================================
> 
> _______________________________________________
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-- 
===============================================================================
Tomas Meinlschmidt, MS {MCT, MCP+I, MCSE, AER}, NetApp Filer/NetCache

www.meinlschmidt.com  www.maxwellrender.cz 
===============================================================================