Visit Our UNIX and Linux User Community


Identifying and removing control characters in a file.


 
Thread Tools Search this Thread
Top Forums Programming Identifying and removing control characters in a file.
# 1  
Old 04-13-2004
Question Identifying and removing control characters in a file.

What is the best method to identify an remove control characters in a file. Would it be easier to do this in Unix or in C.

Previous Thread | Next Thread
Test Your Knowledge in Computers #909
Difficulty: Easy
In computer science, a pointer is a programming language object that stores the memory address of another value located on a hard drive.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need to strip control-A characters from a column in a file

Hi All, I currently have flat file with 32 columns. The field delimiter is cntl-A ( \x01). The file has been extracted from an oracle table using a datastage job. However, in the 6th field, the data contains additional control -A characters which came as a part of the table data. I need... (12 Replies)
Discussion started by: harsha1238
12 Replies

2. Red Hat

Special control characters in file

Hi Guys, We receive some huge files on to Linux server. Source system use FTP mechanism to transfer these files on our server. Occasionally one record is getting corrupted while transfer, some control characters are injecting into the file. How to fix this issue ? please advice ? Sample... (2 Replies)
Discussion started by: srikanth38
2 Replies

3. Shell Programming and Scripting

How to view the control characters in a file?

Hello, How can I view control and special characters of a text file?. For example, space, tabs, new line chars etc. Can I use hexdump for it? Thanks (3 Replies)
Discussion started by: reddyr
3 Replies

4. Shell Programming and Scripting

Help in removing control M and Line feed in output file.

Hi All, In my output file i am getting control m character and also the line feeds at different places and with different combinations, the content of the file is supposed to be in a single line but if there is a line feed in between then from there onwards it's going into new line. I tried... (7 Replies)
Discussion started by: Bipin Kumar
7 Replies

5. UNIX for Dummies Questions & Answers

[Solved] Removing control-m characters from shell script

Hi All, I need to remove control m character from a file. Steps which i am doing in shell script are: 1) We are comparing the header of the file to the database table header Here the file header has control-m characters. How do i remove it. Please help. Below are the steps i am using,... (12 Replies)
Discussion started by: abhi_123
12 Replies

6. Shell Programming and Scripting

Removing special characters - Control M

I have developed a small script to remove the Control M characters that get embedded when we move any file from Windows to Unix. For some reason, its not working in all scenarios. Some times I still see the ^M not being removed. Is there anything missing in the script: cd ${inputDir}... (7 Replies)
Discussion started by: vskr72
7 Replies

7. Shell Programming and Scripting

Removing ^M characters from a file

Hi, I want to removing ^M characters from a file and combine the line with the next line. ex: issue i have: ABC^M^M DEF solution i need: ABCDEF I found that you by using the following command you can remove new line characters. tr -d '\r' < infile.csv > outfile.csv still... (10 Replies)
Discussion started by: mwrg
10 Replies

8. Shell Programming and Scripting

display all possible control characters from .xml file in unix

Hi, I have a .xml file in unix. We are passing this file through a xml parser. But we are getting some control characters from input file and XML parser is failing for the control character in file.Now I am getting following error, Error at byte 243206625 of file filename_$.xml: Error... (1 Reply)
Discussion started by: fantushmayu
1 Replies

9. Shell Programming and Scripting

Hidden control characters in a Unix Text File!

Can anyone seem to know how to find out whether a UNIX text file has 'hidden' control characters? Can I view them using 'vi' by some command line options? If there are control characters in a text file which are invisible/hidden.. then how do I get rid of them? Your intelletual answers are... (6 Replies)
Discussion started by: kewl_guy
6 Replies

10. UNIX for Dummies Questions & Answers

Identifying invisible characters in Unix file

I have a file, which when you look at it, appears as if it has spaces.... But sometimes, it is has tab or Nulls or some other character which we are not able to see..... How to find what character exactly it is in the file, where ever we are seeing a space... (Iam in solaris)... (1 Reply)
Discussion started by: thanuman
1 Replies
WRAP-AND-SORT(1)					      General Commands Manual						  WRAP-AND-SORT(1)

NAME
wrap-and-sort - wrap long lines and sort items in Debian packaging files SYNOPSIS
wrap-and-sort [options] DESCRIPTION
wrap-and-sort wraps the package lists in Debian control files. By default the lists will only split into multiple lines if the entries are longer than 80 characters. wrap-and-sort sorts the package lists in Debian control files and all .install files. Beside that wrap-and-sort removes trailing spaces in these files. This script should be run in the root of a Debian package tree. It searches for control, control.in, copyright, copyright.in, install, and *.install in the debian directory. OPTIONS
-h, --help Show this help message and exit. -a, --wrap-always Wrap all package lists in the Debian control file even if the entries are shorter than 80 characters and could fit in one line line. -s, --short-indent Only indent wrapped lines by one space (default is in-line with the field name). -b, --sort-binary-packages Sort binary package paragraphs by name. -k, --keep-first When sorting binary package paragraphs, leave the first one at the top. Unqualified debhelper(7) configuration files are applied to the first package. -n, --no-cleanup Do not remove trailing whitespaces. -d path, --debian-directory=path Location of the debian directory (default: ./debian). -f file, --file=file Wrap and sort only the specified file. You can specify this parameter multiple times. All supported files will be processed if no files are specified. -v, --verbose Print all files that are touched. AUTHORS
wrap-and-sort and this manpage have been written by Benjamin Drung <bdrung@debian.org>. Both are released under the ISC license. DEBIAN
Debian Utilities WRAP-AND-SORT(1)

Featured Tech Videos