10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello to all,
I would like to search sequences of bytes inside big binary file.
The bin file contains blocks of information, each block begins is estructured as follow:
1- Each block begins with the hex 32 (1 byte) and ends with FF. After the FF of the last block, it follows 33.
2- Next... (59 Replies)
Discussion started by: Ophiuchus
2. Shell Programming and Scripting
is there a better way to do this:
head -c 10000k /var/dump.log | head -c 6000k
unfortunately, the "-c" option is not available on sun solaris. so i'm looking at "dd". but i dont know how to use it to achieve the same exact goal as the above head command.
this needs to work on both solaris... (5 Replies)
Discussion started by: SkySmart
3. Shell Programming and Scripting
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
4. UNIX for Dummies Questions & Answers
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)
Discussion started by: razolo13
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)
Discussion started by: royalibrahim
6. Shell Programming and Scripting
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
my input file size is 1 GB.
Is that memory limit is based on RAM we have on... (1 Reply)
Discussion started by: elamurugu
7. UNIX for Dummies Questions & Answers
How do I check for the total bytes of character used by a file?
Can I used a od command to check?
Thanks. (1 Reply)
Discussion started by: user50210
8. Shell Programming and Scripting
Please shed some light on how to quickly remove all the zero bytes in which there are some mixtures of more than zero bytes in it.
> ls -lrt
-rw-r--r-- 1 ab noen 0 Jul 27 15:47 supplier_mp.unl
-rw-rw-r-- 1 ab noen 507 Aug 5 14:13... (2 Replies)
Discussion started by: cedrichiu
9. Shell Programming and Scripting
I am in need of a simple, (typically one-liner) script to get the last 17 bytes of a line.
here i would need the last 17 bytes of the text
The text length is dymanic (but always more than 17)...it can even span upto... (2 Replies)
Discussion started by: n_rajitr
10. Shell Programming and Scripting
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:
Output needs to be:
I tried this:
printf... (6 Replies)
Discussion started by: Loriel