:mad: I did this the other day but one of my support personnel removed my history so i could call it back up to remeber the exact command since i am air-headed at times. I am trying to take a 30 MEG file off the system and drop it to tape then i want to make the file go back to being 0 bytes so... (1 Reply)
I'm doing a bit of hex editing with dd and I can replace values fairly simply. However, I've run across a situation where I need to delete bytes in the file and I'm not sure how to do that. For example:
Input file has:
1234567890
Output needs to be:
123abc90
I tried this:
printf... (6 Replies)
Hi all,
Does anybody know or guide me on how to remove the first N bytes and the last N bytes from a binary file? Is there any AWK or SED or any command that I can use to achieve this?
Your help is greatly appreciated!!
Best Regards,
Naveen. (1 Reply)
What is the easiest way to inspect the bytes stored in a file?
Ideally, If my file was 10 bytes each of which had only the high bit set, I'd be able to browse for it and get output like this:
01 - 10000000
02 - 10000000
03 - 10000000
04 - 10000000
05 - 10000000
06 - 10000000
07 -... (7 Replies)
Hi Guyz,
I need to capture first N Bytes from the first line of my file.
Eg. If i have following data in File1
414d51204541495052475731202020204a910846230e420c Hello 3621363663212 Help Required
Then, i want the value of first 48 Bytes to be stored in a variable.
That is, variable... (5 Replies)
While running script I am getting an error like
Few lines in data are not being processed.
After googling it I came to know that adding such line would give some memory to it
ini_set("memory_limit","64M");
my input file size is 1 GB.
Is that memory limit is based on RAM we have on... (1 Reply)
Hi,
If I want to copy a 1024 byte data stream in to the target location in 3-bytes chunk, I guess I can use the following script.
dd bs=1024 count=3 if=/src of=/dest
But, I would like to know, how to do it via a C program. I have tried this with memcpy(), that did not help. (3 Replies)
Hello guys. I really hope someone will help me with this one..
So, I have to write this script who:
- creates a file home/student/vmdisk of 10 mb
- formats that file to ext3
- mounts that partition to /mnt/partition
- creates a file /mnt/partition/data. In this file, there will... (1 Reply)
hello,
suppose, entered input is of 1-40 bytes, i need it to be converted to 40 bytes exactly.
example: if i have entered my name anywhere between 1-40 i want it to be stored with 40 bytes exactly.
enter your name:
donald duck (this is of 11 bytes)
expected is as below - display 11... (3 Replies)
Discussion started by: shravan.300
3 Replies
LEARN ABOUT OPENDARWIN
lipo
LIPO(1) General Commands Manual LIPO(1)NAME
lipo - create or operate on fat files
SYNOPSIS
lipo [-info] [-detailed_info] [-arch arch_type input_file] ... [ input_file] ... [-create] [-thin arch_type] [-replace arch_type file-
name] ... [-remove arch_type] ... [-extract arch_type] ... [-extract_family arch_type] ... [-output output_file] [-segalign arch_type
value] ...
DESCRIPTION
The lipo command creates or operates on ``fat'' (multi-architecture) files. It only ever produces one output file, and never alters the
input file. The operations that lipo performs are: listing the architecture types in a fat file; creating a single fat file from one or
more input files; thinning out a single fat file to one specified architecture type; and extracting, replacing, and/or removing architec-
tures types from the input file to create a single new fat output file.
Only one option can be specified, with the exception of -arch, -output, and -segalign, which are used in combination with other options.
The input_file argument is required, and only the -create option allows more than one input_file to be specified. The -output flag must be
used, except with the -info and -detailed_info flags.
The arch_type arguments may be any of the supported architecture names listed in the man page arch(3)exceptforVAXandMips.
OPTIONS -info Briefly list the architecture types in the input fat file (just the names of each architecture).
-detailed_info
Display a detailed list of the architecture types in the input fat file (all the the information in the fat header, for each archi-
tecture in the file).
-arch arch_type input_file
Tells lipo that input_file contains the specified architecture type. The -arch arch_type specification is unnecessary if input_file
is an object file, a fat file, or some other file whose architecture(s) lipo can figure out.
-output output_file
Specifies its argument to be the output file.
-create
Take the input files (or file) and create one fat output file from them.
-thin arch_type
Take one input file and create a thin output file with the specified arch_type.
-replace arch_type file_name
Take one fat input file; in the output file, replace the arch_type contents of the input file with the contents of the specified
file_name.
-remove arch_type
Take one fat input file and remove the arch_type from that fat file, placing the result in the output file.
-extract arch_type
Take one fat input file and copy the arch_type from that fat file into a fat output file containing only that architecture.
-extract_family arch_type
Take one fat input file and copy all of the arch_types for the family that arch_type is in from that fat file into an output file
containing only those architectures. The file will be thin if only one architecture is found or fat otherwise.
-segalign arch_type value
Set the segment alignment of the specified arch_type when creating a fat file containing that architecture. value is a hexadecimal
number that must be an integral power of 2. This is only needed when lipo can't figure out the alignment of an input file (cur-
rently not an object file), or when it guesses at the alignment too conservatively. The default for files unknown to lipo is 0
(2^0, or an alignment of one byte), and the default alignment for archives is 4 (2^2, or 4-byte alignment).
SEE ALSO arch(3)Apple Computer, Inc. October 23, 1997 LIPO(1)