loody wrote:
Dear all:
Hello,
I try to use perl to compare 2 binary files, one is display content
dump from Dram and another is display content calculated by my c-model
code.
I use open and binmode to open these 2 files, and use programs as
below to do the comparison
2008/11/23 loody <[EMAIL PROTECTED]>:
>> Does that mean I should use "ne" instead of "!="?
> BTW, is there any faster default function provide by Perl library to
> compare 2 binary files?
> thanks for your help,
Hi:
forget to explain my question more spe
Check using a hash of the binary using something like MD5::Digest or
something.
On Sat, Nov 22, 2008 at 11:49 PM, loody <[EMAIL PROTECTED]> wrote:
> > Does that mean I should use "ne" instead of "!="?
> BTW, is there any faster default function provide by Perl
> Does that mean I should use "ne" instead of "!="?
BTW, is there any faster default function provide by Perl library to
compare 2 binary files?
thanks for your help,
miloody
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http://learn.perl.org/
Dear all:
I try to use perl to compare 2 binary files, one is display content
dump from Dram and another is display content calculated by my c-model
code.
I use open and binmode to open these 2 files, and use programs as
below to do the comparison:
$num_pattern=read PATTERN, $tmp_gold
"John W. Krahn" schreef:
> Dr.Ruud:
>> Mr. Shawn H. Corey:
>>> Louise Hoffman:
I would like to replace the first 2 bytes from ## to BM in all the
files in a directory. The files are binary.
>>>
>>> Use glob to get the list of files. Use open with read-write to read
>>> the first line a
Dr.Ruud wrote:
"Mr. Shawn H. Corey" schreef:
Louise Hoffman:
I would like to replace the first 2 bytes from ## to BM in all the
files in a directory. The files are binary.
Use glob to get the list of files. Use open with read-write to read
the first line and replace the bytes.
I wouldn't
"Mr. Shawn H. Corey" schreef:
> Louise Hoffman:
>> I would like to replace the first 2 bytes from ## to BM in all the
>> files in a directory. The files are binary.
>
> Use glob to get the list of files. Use open with read-write to read
> the first line and replace the bytes.
I wouldn't read a "
On Sun, 2008-10-05 at 04:44 -0700, Louise Hoffman wrote:
> Dear programmers
>
> I am new to Perl, and was wondering, if someone could help me?
>
> I would like to replace the first 2 bytes from ## to BM in all the
> files in a directory. The files are binary.
>
> Can that be done easily in Perl?
Dear programmers
I am new to Perl, and was wondering, if someone could help me?
I would like to replace the first 2 bytes from ## to BM in all the
files in a directory. The files are binary.
Can that be done easily in Perl?
Hope to hear from you =)
Lots of love,
Louise
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Paul Harwood wrote:
>
> I am trying to read a binary file with the following code:
>
> $filename = "binary_file.rpy";
> open(FILE, $filename) or die "can't open $filename: $!";
>
> binmode(FILE);
> binmode(STDOUT);
>
> while (read(FILE, $buff, 8 * 2**10)) {
> print STDOUT $buff;
> }
I am trying to read a binary file with the following code:
$filename = "binary_file.rpy";
open(FILE, $filename) or die "can't open $filename: $!";
binmode(FILE);
binmode(STDOUT);
while (read(FILE, $buff, 8 * 2**10)) {
print STDOUT $buff;
}
I get *some* rea
On Thu, 13 Feb 2003 11:49:04 -0500, Sean Sugrue wrote:
> I need to be able read the first few lines of a binary test file (i.e.
> .staff form).
Please define what is a line for you in a binary file.
If it is just a normal line (ending on the line separator),
you just can do the normal way,
e.g.
I need to be able read the first few lines of a binary test file (i.e. .staff form).
Does anyone
know how to do this in purl.
Sean
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HK said:
> hi all,
> i am a newbie to perl.
> I have an application in C which will dump statistics (C structures) into
> log files for post processing.
> Can i read those log files from perl and form equivalent structures which
> will help in analysing the files and generate a report on the stat
hi all,
i am a newbie to perl.
I have an application in C which will dump statistics (C structures) into
log files for post processing.
Can i read those log files from perl and form equivalent structures which
will help in analysing the files and generate a report on the statistics.
TIA.
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- Original Message -
From: "Jim" <[EMAIL PROTECTED]>
To: "John Pitchko" <[EMAIL PROTECTED]>; "Paul Johnson" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Wedne
t;Jim" <[EMAIL PROTECTED]>
| To: "Paul Johnson" <[EMAIL PROTECTED]>
| Cc: <[EMAIL PROTECTED]>
| Sent: Sunday, November 03, 2002 10:31 AM
| Subject: Re: Perl Unix Binary Files
|
| > On Saturday 02 November 2002 18:01, you wrote:
| > | On Sat, Nov 02, 2002 at 04:00:44PM
virus free!
- Original Message -
From: "Jim" <[EMAIL PROTECTED]>
To: "Paul Johnson" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Sunday, November 03, 2002 10:31 AM
Subject: Re: Perl Unix Binary Files
> On Saturday 02 November 2002 18:01, you wrot
On Saturday 02 November 2002 18:01, you wrote:
| On Sat, Nov 02, 2002 at 04:00:44PM -0600, John Pitchko wrote:
| > I've been racking my brains out trying to get Perl to write binary
| > files for me. Here is my situation. For my Operating Systems class, we
| > are designing a file
On Sat, 2 Nov 2002 16:00:44 -0600, [EMAIL PROTECTED] (John Pitchko)
wrote:
>Hi all.
>
>I've been racking my brains out trying to get Perl to write binary files for me. Here
>is my situation. For my
>
>I was thinking that I would record the output from Data::Dumper into a
On Sat, Nov 02, 2002 at 04:00:44PM -0600, John Pitchko wrote:
> I've been racking my brains out trying to get Perl to write binary
> files for me. Here is my situation. For my Operating Systems class, we
> are designing a file system. One of the requirements is that the file
> s
Hi all.
I've been racking my brains out trying to get Perl to write binary files for me. Here
is my situation. For my Operating Systems class, we are designing a file system. One
of the requirements is that the file system needs to be saved to disk as a binary
file. I have a few large arr
P. [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, October 15, 2002 2:53 PM
> To: [EMAIL PROTECTED]
> Subject: How to check between text & binary files
>
>
>
> Hi,
>
> I want to write a .pl that will take in filenames as
> parameters, and print out whether the files are
Hi,
I want to write a .pl that will take in filenames as
parameters, and print out whether the files are text files
or binary files.
The problem I'm having is that I can't figure out a good rule
to use while deciding whether a file is a text-file or a binary-file.
If someone has cr
on Fri, 07 Jun 2002 23:28:44 GMT, Eric Abell wrote:
> My question is this: what is the difference between "c" and "C"? I
> know what perldoc says - one is a signed char and the other is an
> unsigned char. So if I have the value 230, shouldn't that be illegal
> for a signed 8-bit number, since th
Eric Abell wrote:
>
> I have an application that requires me to write normal string data or a
> number into a binary file. For example, if I have the string "ff", I
> want to write the byte FF to the output file.
print chr(hex("ff"));
> If I have the number 1, I want to write the byte 01 to the
I have an application that requires me to write normal string data or a
number into a binary file. For example, if I have the string "ff", I
want to write the byte FF to the output file. If I have the number 1, I
want to write the byte 01 to the output file.
I have been using the pack function
At 04:58 PM 8/15/01 -0600, Tyler Cruickshank wrote:
>Hello. Im still struggling with converting a binary file to an ascii
>file. I just dont understand how to use seek and unpack. I understand
>that one needs to know the format of the binary file, therefore, I have
>pasted below FORTRAN code
Hello. Im still struggling with converting a binary file to an ascii file. I just
dont understand how to use seek and unpack. I understand that one needs to know the
format of the binary file, therefore, I have pasted below FORTRAN code that reads the
ascii file and writes a binary file. Th
To read binary files, you need to understand read(), seek() and unpack(),
as well as the underlying binary structure of the file. Peeking into the
file with a hex editor will help distinguish the ASCII bits from the rest.
If you know the C code that creates the file, that can help a lot!
Luke
ines that
> differentiate between ascii and binary files. I have tried the following
> and just get the binary form printed back out at me (the expected result):
binmode() is indeed for operating systems that differentiate between ascii
and binary, but such operating systems are not old.
> -Original Message-
> From: Tyler Cruickshank [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, July 31, 2001 1:32 PM
> To: [EMAIL PROTECTED]
> Subject: binary files
>
>
> Hello.
>
> Looking for some binary file help. I want to read,
> manipulate, and pr
Hello.
Looking for some binary file help. I want to read, manipulate, and print (in ascii) a
binary file on a solaris 7 machine. I have looked into and tried the binmode()
function but this seems to be for older machines that differentiate between ascii and
binary files. I have tried the
> -Original Message-
> From: Sambamoorthy Jayaraman [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, July 26, 2001 2:32 AM
> To: [EMAIL PROTECTED]
> Subject: Reading binary files
>
>
> Hi,
>
> How do I read a binary file?? From this file, I need to re
Hello Sambamoorthy,
Thursday, July 26, 2001, Sambamoorthy Jayaraman <[EMAIL PROTECTED]> wrote:
SJ> How do I read a binary file?? From this file, I need to read 16 bit values.
SJ> I have attached a sample binary file alongwith. When you are reading this
SJ> file, enable `hex edit mode'.
perldoc
Hi,
How do I read a binary file?? From this file, I need to read 16 bit values.
I have attached a sample binary file alongwith. When you are reading this
file, enable `hex edit mode'.
Any help will be deeply appreciated.
Regards,
Samba
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