Blanks vs: Nulls Post: 302166715

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

GREPing for Nulls

I just had a filesystem / file corruption issue on my HSP's server due to disk capacity limits and fileswapping. I discovered that certain files got corrupted when fileswapping was not successful and they ended up with a string of control characters, or what I believe to be nulls, in them. Does...

2. Shell Programming and Scripting

Replacing nulls using sed

Hi, I am trying to replace nulls with spaces in every record of a '|' delimited file. I used this command - cat input.dat | sed 's/||/| |/g' > output But if a space appears twice '| | |' , then only the first null is getting replaced with a space. The second one remains as a null. I...

3. Shell Programming and Scripting

sort truncates line when they contain nulls

When I try to sort a file where some records contain nulls i.e. hex 00 the sort truncates the record when it reaches the null and writes message: "sort: warning: missing NEWLINE added at end of input file myfile" I'm assuming from this that the sort sees the null as a special character and...

4. Shell Programming and Scripting

include NULLs in line length check

Hello, I am checking the length of each line of a fixed length file and making sure all lines are 161 length. My problem is that some files contain null characters which gets stripped out of my echo. How do I have the NULLs included in my check? (and I cannot replace or sub the NULL values with...

5. Shell Programming and Scripting

replace nulls with whitespaces in a file

Hi, i have a file which contains data in fixed length. each row contains data of 10 characters fixed length. The data in the file appears like 4567782882 some times i may recieve dat less than fixed length of 10. in such a case i find nulls appended at the trailing spaces when i do a...

6. Red Hat

Counting columns in a delimited record with NULLs

I am trying to count the number of columns in a delimited flat file. The record is tab delimited. When I use the command wc -w, I am getting unexpected results when the record contains a NULL value. I believe it is because there is a "word" missing. The below example will return 4 words...

7. Shell Programming and Scripting

Script that Nulls Contents of Files

Ok, I'm stuck here with a plan to get what I need done completed. I want to use perl to produce a document. lets say the document will be a pdf document. Now, is there a way for me to put a tiny little code in that pdf document that can make the pdf file null itself if run on a non-unix...

8. Shell Programming and Scripting

Replace nulls with a value in a file

9. UNIX for Beginners Questions & Answers

Remove or truncate trailing nulls from file

I want to remove from a file the trailing null characters (0x00) and stop doing so when a different byte is found (which should not be deleted), and either put the result to the same file or a different one. Any ideas?

LEARN ABOUT MOJAVE

net::dns::mailbox5.18

Net::DNS::Mailbox(3)					User Contributed Perl Documentation				      Net::DNS::Mailbox(3)

NAME

       Net::DNS::Mailbox - DNS mailbox representation

SYNOPSIS

	   use Net::DNS::Mailbox;

	   $mailbox = new Net::DNS::Mailbox('user@example.com');
	   $address = $mailbox->address;

DESCRIPTION

       The Net::DNS::Mailbox module implements a subclass of DNS domain name objects representing the DNS coded form of RFC822 mailbox address.

METHODS

   new
	   $mailbox = new Net::DNS::Mailbox('John.Doe@example.com');
	   $mailbox = new Net::DNS::Mailbox('John Doe <j.doe@example.com>');

       Creates a mailbox object which represents the DNS domain encoded form of the mail address specified by the character string argument.

       The argument string consists of printable characters from the 7-bit ASCII repertoire.

   address
	   $address = $mailbox->address;

       Returns a character string containing the RFC822 mailbox address corresponding to the encoded domain name representation described in
       RFC1035 section 8.

DOMAIN NAME COMPRESSION AND CANONICALISATION

       The Net::DNS::Mailbox1035 and Net::DNS::Mailbox2535 subclass packages implement RFC1035 domain name compression and RFC2535
       canonicalisation.

COPYRIGHT

       Copyright (c)2009,2012 Dick Franks.

       All rights reserved.

       This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       perl, Net::DNS, Net::DNS::DomainName, RFC822, RFC1035, RFC5322

perl v5.18.2							    2014-01-16						      Net::DNS::Mailbox(3)