Sponsored Content
Top Forums Shell Programming and Scripting Regex and backreference to replace in binary file Post 302869665 by Don Cragun on Wednesday 30th of October 2013 05:13:28 PM
Old 10-30-2013
Quote:
Originally Posted by Ophiuchus
Hello Don,

Thanks for your help. It seems to work!

Is possible to do multiple replacements for example this to '\220-\233' '\300-\313' and '\100-\117' to '\040-\057' in a single command?

is possible to replace an hex string of more than one byte? for example ff4567 with 3A0013

Thanks again.
To do multiple ranges:
Code:
LC_ALL=POSIX tr '\100-\117\220-\233' '\040-\057\300-\313'<in_file >out_file

The tr utility translates characters or bytes; not strings or multi-byte sequences, and as I said before, tr isn't required to recognize hex. Look at the man page for tr on your system to determine if your tr utility has additional options or formats that may help you.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

replace string in binary file

Dear all, How can replace special string with another string in binary file? Thanks&Best Regards (2 Replies)
Discussion started by: sg1207
2 Replies

2. UNIX for Dummies Questions & Answers

replace line after a regex

Hi, I am trying to write a script which will modify a given account's settings by searching for a line in a file and then replacing the line after it. Here is a portion of my input file: type=friend username=0002 secret=password host=dynamic dtmfmode=rfc2833 mailbox=0002 context=sip... (2 Replies)
Discussion started by: the1armedcoder
2 Replies

3. Emergency UNIX and Linux Support

search replace regex question

Hi, I need to run a search and replace on a large database, what I need to change is all instances of #### (eg. 1764 or 1964) to (####) (eg. (1764) or (1964)) But there might be other numbers in there such as (1764) and I do not need those changed to ((1764)) How can I... (7 Replies)
Discussion started by: lawstudent
7 Replies

4. Shell Programming and Scripting

sed regex backreference replacement

Hello, I want to rename multiple files and catch some points about backreference within sed and regex. Here is a part of my file list. Input: S92A.fa S92B.fa ... S96Z.fa S921.fa S922.fa ... S997.fa Note: The file names are not necessarily continuous from A~Z or 921 ~ 997, as some of the... (3 Replies)
Discussion started by: yifangt
3 Replies

5. UNIX for Dummies Questions & Answers

read regex from ID file, print regex and line below from source file

I have a file of protein sequences with headers (my source file). Based on a list of IDs (which are included in some of the headers), I'd like to print out only the specified sequences, with only the ID as header. In other words, I'd like to search source.txt for the terms in IDs.txt, and print... (3 Replies)
Discussion started by: pathunkathunk
3 Replies

6. Shell Programming and Scripting

Convert binary file to csv and then back to the binary format

Hello *nix specialists, Im working for a non profit organisation in Germany to transport DSL over WLAN to people in areas without no DSL. We are using Linksys WRT 54 router with DD-WRT firmware There are at the moment over 180 router running but we have to change some settings next time. So my... (7 Replies)
Discussion started by: digidax
7 Replies

7. Shell Programming and Scripting

Regex - search and replace

I have file which contains data in the following format all in a single line: BDW_PUBLN_ID DECIMAL(18:0) NOT NULL PRIMARY INDEX ARGO_ACCT_DEP_PI ( OFC_ID ,CSHBX_ID ,TRXN_SEQ_NUM ,PROCG_DT ) PARTITION BY RANGE_N(PROCG_DT BETWEEN DATE '2012-03-01' AND DATE '2014-12-31' EACH INTERVAL '1' MONTH );... (4 Replies)
Discussion started by: ysvsr1
4 Replies

8. UNIX for Dummies Questions & Answers

Binary search and replace

Hello again. I have two problems - is it possible to solve them? 1. I want to replace a few bytes after specific hex-string. i.e.: I want to replace two bytes after AA AB AC: AA AB AC 00 00 AA AA AA so the expected result should be: AA AB AC FF FF AA AA AA 2. I want to replace three bytes... (9 Replies)
Discussion started by: useretail
9 Replies

9. UNIX for Advanced & Expert Users

Segregate file content using sed backreference

I have some text like EU1BTDAT:ASSGNDD filename='$SEQFILES/SUNIA.PJ008202.CARDLIB/DATECARD' EU1BTDATEST:ASSGNDD filename='$SEQFILES/SUNIA.PJ008202.CARDLIB/DATECARD' EU1CLOSEDATES:ASSGNDD filename='$SEQFILES/SUNIA.PJ008202.CARDLIB/DATECARD' EU1DATED:ASSGNDD... (8 Replies)
Discussion started by: gotamp
8 Replies

10. UNIX for Beginners Questions & Answers

Regex Expression Replace

I have a XML file where there is a tag with like <wd:address_line_1>1234 Street</wd:address_line_1> I want to replace the values "1234 Street" with "Test Data". Different people have different address lines and i want to replace with a fixed value to mask the file. I was trying to use sed... (7 Replies)
Discussion started by: dr46014
7 Replies
GIT-REPLACE(1)							    Git Manual							    GIT-REPLACE(1)

NAME
git-replace - Create, list, delete refs to replace objects SYNOPSIS
git replace [-f] <object> <replacement> git replace -d <object>... git replace -l [<pattern>] DESCRIPTION
Adds a replace reference in refs/replace/ namespace. The name of the replace reference is the SHA-1 of the object that is replaced. The content of the replace reference is the SHA-1 of the replacement object. Unless -f is given, the replace reference must not yet exist. Replacement references will be used by default by all Git commands except those doing reachability traversal (prune, pack transfer and fsck). It is possible to disable use of replacement references for any command using the --no-replace-objects option just after git. For example if commit foo has been replaced by commit bar: $ git --no-replace-objects cat-file commit foo shows information about commit foo, while: $ git cat-file commit foo shows information about commit bar. The GIT_NO_REPLACE_OBJECTS environment variable can be set to achieve the same effect as the --no-replace-objects option. OPTIONS
-f If an existing replace ref for the same object exists, it will be overwritten (instead of failing). -d Delete existing replace refs for the given objects. -l <pattern> List replace refs for objects that match the given pattern (or all if no pattern is given). Typing "git replace" without arguments, also lists all replace refs. BUGS
Comparing blobs or trees that have been replaced with those that replace them will not work properly. And using git reset --hard to go back to a replaced commit will move the branch to the replacement commit instead of the replaced commit. There may be other problems when using git rev-list related to pending objects. And of course things may break if an object of one type is replaced by an object of another type (for example a blob replaced by a commit). SEE ALSO
git-tag(1) git-branch(1) git(1) GIT
Part of the git(1) suite Git 1.8.3.1 06/10/2014 GIT-REPLACE(1)
All times are GMT -4. The time now is 03:14 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy