Sponsored Content
Top Forums Shell Programming and Scripting Grepping for hex characters - explanation? Post 302491364 by Scrutinizer on Thursday 27th of January 2011 08:39:35 AM
Old 01-27-2011
This construction can be used in bash and ksh93:
man ksh:
Quote:
A single quoted string preceded by an unquoted $ is processed as an ANSI-C string except
for the following:
\0 Causes the remainder of the string to be ignored.
\E Equivalent to the escape character (ascii 033),
\e Equivalent to the escape character (ascii 033),
\cx Expands to the character control-x.
\C[.name.]
Expands to the collating element name.
This User Gave Thanks to Scrutinizer For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

grepping the first 3 characters from a file

Hi I was wondering if it's possible to use a command to get the first 3 characters of a line in a text file, I tried grep but it returns the whole line but I am only interested in the first 3 characters. Is this possible with grep or I need any other command? Also is it possible deleting from... (2 Replies)
Discussion started by: g-e-n-o
2 Replies

2. UNIX for Dummies Questions & Answers

grepping the first 3 characters from a file

give this a try and let me know if it works grep '^' filename rachael (2 Replies)
Discussion started by: rachael
2 Replies

3. Shell Programming and Scripting

Replacing all but last Hex characters in a text line

I must remove hex characters 0A and 0D from several fields within an MS Access Table. Since I don't think it can be done in Access, I am trying here. I am exporting a Table from Access (must be fixed length fields, I think, for my idea to work here) into a text format. I then want to run a... (2 Replies)
Discussion started by: BAH
2 Replies

4. HP-UX

Hex characters of ascii file

Hi, Whats the command or how do you display the hexadecimal characters of an ascii file. thanks Bud (2 Replies)
Discussion started by: budrito
2 Replies

5. Shell Programming and Scripting

Grepping characters

Hi friends, I want your help. I have a flat file. I want a script to search following pattern in it and once it get that pattern it should grep next 7 characters from it and should keep it in output file output.TXT Pattern is RSTD3R0******* In above example, characters in the place of *... (3 Replies)
Discussion started by: anushree.a
3 Replies

6. Programming

After converting the hexstr to Hex and storing the Hex in a char*

Hi All, My main intension of is to convert the Hexstring stored in a char* into hex and then prefixing it with "0x" and suffix it with ',' This has to be done for all the hexstring char* is NULL. Store the result prefixed with "0x" and suffixed with ',' in another char* and pass it to... (1 Reply)
Discussion started by: rvan
1 Replies

7. Shell Programming and Scripting

Replacing hex characters '\x0D' with '\x0D\x0A'

Hello All, I have a requirement where I need to replaced the hex character - '\x0D' with 2 hex characters - 'x0D' & 'x0A' I am trying to use SED - But somehow its not working. Any pointers? Also the hex character '\x0D' can occur anywhere in the line. Can this also be accomplished... (6 Replies)
Discussion started by: paragkalra
6 Replies

8. 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

9. UNIX for Dummies Questions & Answers

Replacing hex characters

I have the following file consisting of dates and sample measurements: 05��Oct��2010 1.31�� 06��Oct��2010 1.32�� 07��Oct��2010 1.31�� The hex characters are \xc2\xa0 in sequence. I have tried to remove the characters as follows: sed -i '' -e 's/\xc2\xa0//g' file.dat and as follows... (6 Replies)
Discussion started by: figaro
6 Replies

10. HP-UX

Replacing Hex Characters In A File Using awk?

Hi guys, First off, i'm a complete noob to UNIX and LINUX so apologies if I don't understand the basics! I have a file which contains a hex value of '0D' at the end of each line when I look at it in a hex viewer. I need to change it so it contains a hex value of '0D0A0A' I thought... (10 Replies)
Discussion started by: AndyBSG
10 Replies
FBB::lm(3bobcat)                                              OFoldStream manipulator                                             FBB::lm(3bobcat)

NAME
FBB::lm - Manipulator setting left margins of OFoldStream objects SYNOPSIS
#include <bobcat/ofoldstream> or #include <bobcat/ofoldstreambuf> Linking option: -lbobcat DESCRIPTION
The lm class implements a manipulator that can be inserted into OFoldStream objects to set the stream's left margin to a requested value. Depending on the tab-setting of the OFoldStream the inserted value represents the number of blank space characters or the number of tab-characters that will be used for the left margin. The request will be processed at the next newline character or std::flush or std::endl manipulator that is inserted into the stream. If a line is still once an lm object and a flush manipulator are inserted into the stream then the new left margin will be effective at the next word inserted into that line (cf., the example section below). A bad_cast exception is thrown when the manipulator is inserted into an ostream that is not using a OFoldStreambuf buffer. NAMESPACE
FBB All constructors, members, operators and manipulators, mentioned in this man-page, are defined in the namespace FBB. INHERITS FROM
- CONSTRUCTOR
o lm(size_t newValue): The standard copy constructor is available. MEMBER FUNCTIONS
There are no public or protected member functions in this class. EXAMPLE
#include <iostream> #include <bobcat/ofoldstream> using namespace std; using namespace FBB; int main() { OFoldStream out(cout, 0, 80); out << "hello world (left margin is 0)" << lm(4) << " " "this uses a 4 character wide left margin " << lm(0) << flush << "at column 0 again "; return 0; } FILES
bobcat/lm - defines the class interface SEE ALSO
bobcat(7), manipulators(3bobcat), mlm(3bobcat), ofoldstream(3bobcat) BUGS
None Reported. DISTRIBUTION FILES
o bobcat_3.01.00-x.dsc: detached signature; o bobcat_3.01.00-x.tar.gz: source archive; o bobcat_3.01.00-x_i386.changes: change log; o libbobcat1_3.01.00-x_*.deb: debian package holding the libraries; o libbobcat1-dev_3.01.00-x_*.deb: debian package holding the libraries, headers and manual pages; o http://sourceforge.net/projects/bobcat: public archive location; BOBCAT
Bobcat is an acronym of `Brokken's Own Base Classes And Templates'. COPYRIGHT
This is free software, distributed under the terms of the GNU General Public License (GPL). AUTHOR
Frank B. Brokken (f.b.brokken@rug.nl). libbobcat1-dev_3.01.00-x.tar.gz 2005-2012 FBB::lm(3bobcat)
All times are GMT -4. The time now is 12:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy