Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Replace hex values using sed command
Top Forums UNIX for Advanced & Expert Users Replace hex values using sed command Post 303011179 by drysdalk on Sunday 14th of January 2018 07:07:50 PM
Old 01-14-2018
Hi,

Hmm, unusual. Can you check one more thing please ? What's the current value of the LANG (and possibly also LC_ALL) environment variable ? if your current locale isn't actually set to a UTF-8 locale, that might explain some of these problems. Either that, or the utilities on the system you're on just can't handle UTF-8 properly at all. I'm having no issues with this at all on my Linux box, so it could always be something Solaris-specific also. If I get the chance I'll try to test it on a SunOS-style box this evening if I can.

---------- Post updated 15-01-18 at 12:07 AM ---------- Previous update was 14-01-18 at 09:42 PM ----------

Hi,

OK, think I might have a SunOS-based solution for you here. Caveat: this was tested on Tribblix, an open-source Illumos based version of Solaris, so it's SunOS-like, but not official "proper" (or paid-for, more to the point) Oracle Solaris. But it should be compatible enough for almost any purpose.

So, the answer I found was to use octal rather than hex. Try this:

Code:
root@tribblix:~/test# cat test.txt
Á
root@tribblix:~/test# file test.txt
test.txt:       data
root@tribblix:~/test# cat test.txt | sed 's/\301/A/g' > test2.txt
root@tribblix:~/test# cat test2.txt
A
root@tribblix:~/test# file test2.txt
test2.txt:      ascii text
root@tribblix:~/test#

It's possible there's a little-endian-versus-big-endian byte order issue with the hex substitution, so rather than try to get my head around that I thought to try to octal, and that seems to do the job. Let us know how you get on.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Modifying binary file by editing Hex values ?

Hi , i'm using special binary file (lotus notes) and modifying an hexadecimal address range with windows hex editor and it works fine ! The file is an AIX one and i'm forced to transfert (ftp) it before modifying it and re-transfert ! NOW i would do this directly under AIX ! I can... (4 Replies)
Discussion started by: Nicol
4 Replies

2. Shell Programming and Scripting

How do i use sed to replace string with values from a dictionary file

I have file 1 with one million rows. one of the fields is "FIRSTNAME" (the string) I have a second file with about 20 first names. JUDE DAVID HOMER CANE ABEL MARTY CARL SONNY STEVE BERT OSCAR MICKY JAMES JOHN GLENN DOUG (3 Replies)
Discussion started by: yoyolandre
3 Replies

3. Shell Programming and Scripting

Loop with sed command to replace line with sed command in it

Okay, title is kind of confusion, but basically, I have a lot of scripts on a server that I need to replace a ps command, however, the new ps command I'm trying to replace the current one with pipes to sed at one point. So now I am attempting to create another script that replaces that line. ... (1 Reply)
Discussion started by: cbo0485
1 Replies

4. UNIX for Dummies Questions & Answers

using sed to replace values...

I have a file: $somevar=somevalue $anothervar= $someothervar=45 I'd like to be able to replace the values in the file. I just don't know how exactly to use sed. I was thinking along the lines of: cat file | sed "s/$somevar=/anotherval/g" I was hoping this would make the... (2 Replies)
Discussion started by: mrwatkin
2 Replies

5. Shell Programming and Scripting

Replace blank values for string using sed

Hi everyone, I was wondering how could from a file where each row is separated by tabulations, the row values where are in blank replace them by a string or value. My file has this form: 26/01/09 13:45:00 0 0 26/01/09 14:00:00 1495.601318 0 26/01/09 14:15:00 1495.601318 0 ... (4 Replies)
Discussion started by: tonet
4 Replies

6. Programming

searching files for hex or oct values

I have a set of files without extensions. How can I programatically tell if a file is in gzip format? The gzip file format spec RFC 1952 GZIP File Format Specification version 4.3 states that gzip files have certain hex/oct values at the beginning of the file. 1st byte = 0x1f in hex,... (2 Replies)
Discussion started by: daflore
2 Replies

7. Shell Programming and Scripting

Convert hex values to displayable characters

Hi, I am a bit stuck with displaying characters. I am having values like below in the proper displayable characters. which I would want to print the actual value on the right hand side. I dont want to create an array because I would have to create 255 different values. isnt there another way of... (17 Replies)
Discussion started by: ahmedwaseem2000
17 Replies

8. Shell Programming and Scripting

sed replace values of column with ordered numbering

Hello, I am trying to write a shell script that will create a gnuplot file. My main problem is that I have a data file with two columns: 1.05929120E+09 5.0000701214792 1.05930096E+09 5.00006386985764 1.05930584E+09 5.00019465404908 1.05931072E+09 5.00031960589719 ... (2 Replies)
Discussion started by: pau
2 Replies

9. Shell Programming and Scripting

Help search and replace hex values only in specific files

perl -pi -e 's/\x00/\x0d\x0a/g' `grep -l $'GS' filelist` This isn't working :confused:, it's not pulling the files that contain the regex. Please help me rewrite this :wall:. Ideally for this to work on 9K of 20K files in the directory, I've tried this but I don't know enough about awk... (7 Replies)
Discussion started by: verge
7 Replies

10. Shell Programming and Scripting

How to replace with "sed" some hex values by other hex values?

Assume I have a file \usr\home\\somedir\myfile123.txt and I want to replace all occurencies of the two (concatenated) hex values x'AD' x'A0' bytwo other (concatenated) hex values x'20' x'6E' How can I achieve this with the gnu sed tool? Additional question: Is there a way to let sed show... (1 Reply)
Discussion started by: pstein
1 Replies

LEARN ABOUT DEBIAN

ecaccess-file-move

ECACCESS-FILE-MOVE(1p)					User Contributed Perl Documentation				    ECACCESS-FILE-MOVE(1p)

NAME

       ecaccess-file-move - Move or Rename ECaccess Files

SYNOPSIS

       ecaccess-file-move -version|-help|-manual

       ecaccess-file-move [-debug] source-ecaccess-file target-ecaccess-file

DESCRIPTION

       Allow moving an ECaccess File. When the move occurs within the same ECaccess File System then it is a rename. When the move occurs across
       two different ECaccess File Systems then first a copy is done and then a delete of the original file is done (e.g. similar to ecaccess-
       file-copy ... -erase).

       The source-ecaccess-file and target-ecaccess-file are in the form [domain:][/user-id/]path. Please read the "Shell commands -> File
       Management" section of the "ecaccess" guide for more information on the ECaccess File System.

ARGUMENTS

       source-ecaccess-file
	       The source ECaccess File name.

       target-ecaccess-file
	       The target ECaccess File name.

OPTIONS

       -version
	       Display version number and exits.

       -help   Print a brief help message and exits.

       -manual Prints the manual page and exits.

       -debug  Display the SOAP messages exchanged.

EXAMPLES

       ecaccess-file-move ec:test1.txt ec:test2.txt

       Rename the test1.txt file in the ECFS directory of the authenticated user in test2.txt.

       ecaccess-file-move ec:test1.txt home:test2.txt

       Copy the test1.txt file from the ECFS directory of the authenticated user to the test2.txt file in the $HOME directory of the authenticated
       user, then delete the test1.txt file from ECFS.

SEE ALSO

       ecaccess-file-delete, ecaccess-file-get, ecaccess-file-mget, ecaccess-file-modtime, ecaccess-file-mput, ecaccess-file-rmdir, ecaccess-file-
       copy, ecaccess-file-dir, ecaccess-file-mdelete, ecaccess-file-mkdir, ecaccess-file-chmod, ecaccess-file-put, ecaccess-file-size and
       ecaccess.

perl v5.14.2							    2012-04-16						    ECACCESS-FILE-MOVE(1p)
All times are GMT -4. The time now is 09:36 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy