Login or Register to Ask a Question and Join Our Community


UNIX for Advanced & Expert Users

Hidden Characters

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users Hidden Characters
# 1  
Old 07-02-2007
Hidden Characters
Hello all,
I have two files, that I suspect may contain hidden characters (EG, three spaces instead of a tab). Does anyone know of any tool that can display this (I have tried using diff, but I'm not quite sure it would do the job)
# 2  
Old 07-02-2007
Perhaps this ?
Code:
od -a file.name

# 3  
Old 07-02-2007
You can use this,

Code:
cat -v <filename>

# 4  
Old 07-02-2007
Quote:
Originally Posted by vino
Perhaps this ?
Code:
od -a file.name

Hi. od doesn't seem to have a "-a" option...?
# 5  
Old 07-02-2007
You could use this script !

Code:
#! /opt/third-party/bin/perl

open(FILE, "<", $ARGV[0]) || die ("unable to open <$!>\n");

while( read(FILE, $data, 1) == 1 ) {
  $ordVal = ord($data);
  print "OrdVal: $ordVal chr: $data ";
}

close(FILE);

exit 0

# 6  
Old 07-03-2007
Quote:
Originally Posted by matrixmadhan
You could use this script !

Code:
#! /opt/third-party/bin/perl

open(FILE, "<", $ARGV[0]) || die ("unable to open <$!>\n");

while( read(FILE, $data, 1) == 1 ) {
  $ordVal = ord($data);
  print "OrdVal: $ordVal chr: $data ";
}

close(FILE);

exit 0


getting an error near
"<", $ARGV[0])



gandp1:/global/dmz/bbssdpi/LIVE/dp1020> /tmp/support/perl_1 /global/dmz/bbssdpi/LIVE/dp1020/archive/DP-BR_124683000.xml | head
Too many arguments for open at /tmp/support/perl_1 line 3, near "]) "
Execution of /tmp/support/perl_1 aborted due to compilation errors.


thanks
Khoom
# 7  
Old 07-06-2007
try using two arguments for the open command like the below

Code:
open(FILE, "<$ARGV[0]") || die ("unable to open <$!>\n");

Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

ksh hidden characters in variables

Hi. I'm getting the following hidden characters \uat the start of a string after I pass in variables from the command line. I only noticed this when I set -x in my KSH script. Can anybody tell me how this happens and how to remove them? Many thanks. + STR=$'\uusername testuser1' + print... (12 Replies)
Discussion started by: user052009
12 Replies

2. Shell Programming and Scripting

Rsync - how to copy hidden folder or hidden files when using full path

Hello. I use this command : rsync -av --include=".*" --dry-run "$A_FULL_PATH_S" "$A_FULL_PATH_D"The data comes from the output of a find command. And no full source directories are in use, only some files. Source example... (2 Replies)
Discussion started by: jcdole
2 Replies

3. UNIX for Beginners Questions & Answers

Hidden characters when pasting in vi/vim

Hello everyone. When I copy some configuration settings string from MS_Word to putty from my personal pc to a remote machine, it appears that I copy some hidden symbols, which at first, cannot be seen and appear as hidden. Some java programs did not start, and after investigation I found that: ... (3 Replies)
Discussion started by: dampio
3 Replies

4. Shell Programming and Scripting

Hidden Characters in Regular Expression Matching Perl - Perl Newbie

I am completely new to perl programming. My father is helping me learn said programming language. However, I am stuck on one of the assignments he has given me, and I can't find very much help with it via google, either because I have a tiny attention span, or because I can be very very dense. ... (4 Replies)
Discussion started by: kittyluva2
4 Replies

5. Shell Programming and Scripting

How to see hidden characters.....

I know that cat -v will show me hidden characters in a file.... I for some reason seem to think that there's a bash command that will show me hidden characters in a variable in a script? Or am I just imagining it? Thanks in advance (8 Replies)
Discussion started by: Bashingaway
8 Replies

6. Shell Programming and Scripting

hidden characters added to commands

Hello everybody. Im really new in shell scripting. Im working with RedHat 4. I have begin to do some scripts to test the posibilitys but Im fancing a disturbing problem. some times the lines that I write add the return character or end-of-file ascii character to the command or argument tha... (2 Replies)
Discussion started by: josebenitez
2 Replies

7. 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

8. UNIX for Advanced & Expert Users

hidden Characters

Hello All, I'm trying to parse through a file and display all the hidden characters, including all carriage and line returns. I usually use cat -v, but this doesn't display the carriage and line returns. Does anyone know how this can be done? Thanks Khoom (5 Replies)
Discussion started by: Khoomfire
5 Replies

9. UNIX for Dummies Questions & Answers

missing hidden characters

I made a small change to a UNIX script. When I tried to run it I received the following message: /bin/ksh: ^M: not found /bin/ksh: ^M: not found /bin/ksh: ^M: not found As ^M is a non printing character, I don't know how to discover where it is missing. How can I correct thiis... (2 Replies)
Discussion started by: SUSANR9999
2 Replies
Login or Register to Ask a Question