03-16-2010
Reverse hexdump without xxd
The "hexdump" command cannot perform reverse operation. On the other hand, the "xxd" command with -r option performs reverse hexdump, while the "xxd" command without -r performs the (forward) hexdump. An example of hexdump is to convert ABCD into 41 42 43 44. An example of reverse hexdump is to convert 41 42 43 44 back into ABCD.
The command "xxd" comes with Mac OS X. However, Linux may not come with "xxd". On a Linux that does not come with "xxd", how can reverse hexdump be achieved? Perhaps, vi editor?
Thanks in advance.
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
when I do
$ ls z*
List of all files begining with 'z'. But what if I want to do a reverse lookup. Just for interest sake ;)
$ ls ztr
should be same as
$ ls ztr*
$ ls zt*
$ ls z* (2 Replies)
Discussion started by: azmathshaikh
2 Replies
2. Shell Programming and Scripting
Hi,
Can someone let me know how to find the reverse of the basename i.e
i have /apps/tiv/pmon/xxxx.dat and I want /apps/tiv/pmon/
Thanks (7 Replies)
Discussion started by: braindrain
7 Replies
3. Shell Programming and Scripting
Hi Everybody,
I want to write a script in unix which will automatically FTP a .txt file from my client machine D: drive(Windows)
That is I want to FTP a file from my PC to UNIX box but this should be done from UNIX box by a shell script. (i.e. I will invoke the script in UNIX and FTP will be... (4 Replies)
Discussion started by: ganesh123
4 Replies
4. Shell Programming and Scripting
Hello,
How do i sort a csv file. i should be sorting column1(varchar),column2*(varchar) in ascending and column4 in descending order(numeric datatype).
I tried few combinations of sort, but doesn't seem to be getting the right result.
sort -t "," -k 1 -k 2 -k 4nr file
any help is... (3 Replies)
Discussion started by: markjason
3 Replies
5. Shell Programming and Scripting
hey guys,
can anybody help me out here on the following:
grep '^\{1,3\}\.\{1,3\}\.\{1,3\}\.\{1,3\}$' ravi.txt mary.txt lisa.txt https://www.unix.com/images/misc/progress.gif
i.e what i did was found ip addreses from different files
and then i want... (1 Reply)
Discussion started by: ravis83
1 Replies
6. Shell Programming and Scripting
How to create a symbolic link to a command with certain argument?
When I man hexdump, it is said in the man page that "-C Canonical hex+ASCII display...Calling the command hd implies this option". Actually it is. hd equals to hexdump -C.
And then I examined the ln command but find it is a... (5 Replies)
Discussion started by: vistastar
5 Replies
7. Shell Programming and Scripting
Hello guys
How can I use egrep to match word1 but not word2...word1.
What I mean
suppose that I have the following text, and my word1=pizza and word2=eat
I hate to eat pizza because I ma eating it each day
Pizza is good
I like vegetarian and Italian Pizza
eating healthy food is... (7 Replies)
Discussion started by: fdc2suxs
7 Replies
8. Shell Programming and Scripting
hi,
I would like to ask or is it possible to dump a hex using dd from starting point to end point just like the "xxd -s 512 -l 512 <bin file>"
I know the redirect hexdump -C but i can't figure it out the combination options of dd.
Hope someone can share their knowledge..
Thanks in... (3 Replies)
Discussion started by: jao_madn
3 Replies
9. Shell Programming and Scripting
Hi all:
I need edit a hexadecimal file.
for example:
000d530: 0000 0000 0000 0000 0000 0000 493a 004f ............I:.O
000d540: 6374 2032 3820 3230 3135 2031 393a 3234 ct 28 2015 19:24
I need to cut the chain(black) and corresponding to hexadecimal
from the chain at the end of file... (5 Replies)
Discussion started by: Rodrigo0461
5 Replies