I backup a file to tape by using "dd", since the size is too large it took two tape for the backup, the question is how to restore the said file? The "dd" doesn't ask me insert next tape while restoration. (3 Replies)
I have an OCR output with some words splitted into single characters separated by blank spaces,
and I want the same text with these words written correctly.
Example:
This is a text w i t h some s p l i t e d W o r d s .
The regular expression for matching splitted words could be something... (5 Replies)
Friends,
I need help with the following in UNIX.
Merge all csv files in one folder considering only 1 header row and ignoring header of all other files.
FYI - All files are in same format and contains same headers.
Thank you (4 Replies)
Hi Folks,
I have a file like:
mainfile.txt:
-------------
file1 abc def xyz
file1 aaa pqr xyz
file2 lmn ghi xyz
file2 bbb tuv xyz
I need output having two files file1 and file2.
file1:
------
Name State Country
abc def xyz
aaa pqr xyz
file2: (3 Replies)
Hey :3
I am moving some stuff between different servers.
I do it like this:
scp -r -P 22 -i ~/new.ppk /var/www/bigfile.tar.gz user@123.123.123.123:/var/www/bigfile.tar.gz
Lets say, this file is 50 GiB. I would like to know, if its possible to split the file in different parts,... (2 Replies)
Hi all,
i have a binary file splitted into 2 chunks, first part with all high bytes and the second part with all low bytes.
I need to combine the two chunks into one binary file like (eg. exactly the reverse of the splitting method solved in the thread # 130940)
Hi bytes file content:... (7 Replies)
---------- Post updated at 11:48 AM ---------- Previous update was at 11:46 AM ----------
Hello all
I have an awk code that successfully creates separate text files based on the first six letters of the second field. What it doesn't do is preserve the header into each resulting file.
... (6 Replies)
Hi
I have a script that is sending mail and it was working fine. But the last time it run, it gave some errors. It look like the subject was split into many receiver. I am on AIX 6.1.
#!/bin/ksh
#
HOSTNAME=`which hostname`
MACHINE=`${HOSTNAME}`
# E-mail to inform hci of a stop
echo "###... (9 Replies)
I have to append the header (ie "START OF LINE") to a file only if there is data in it.
Below command is showing header though there is no data in a file, can you suggest how to correct..
awk '{NR!=0} BEGIN{print "START OF LINE"}; {print}' file (3 Replies)
Discussion started by: JSKOBS
3 Replies
LEARN ABOUT REDHAT
net::dns::header
Net::DNS::Header(3) User Contributed Perl Documentation Net::DNS::Header(3)NAME
Net::DNS::Header - DNS packet header class
SYNOPSIS
"use Net::DNS::Header;"
DESCRIPTION
A "Net::DNS::Header" object represents the header portion of a DNS packet.
METHODS
new
$header = Net::DNS::Header->new;
$header = Net::DNS::Header->new($data);
Without an argument, "new" creates a header object appropriate for making a DNS query.
If "new" is passed a reference to a scalar containing DNS packet data, it creates a header object from that data.
Returns undef if unable to create a header object (e.g., if the data is incomplete).
print
$header->print;
Dumps the header data to the standard output.
string
print $header->string;
Returns a string representation of the header object.
id
print "query id = ", $header->id, "
";
$header->id(1234);
Gets or sets the query identification number.
qr
print "query response flag = ", $header->qr, "
";
$header->qr(0);
Gets or sets the query response flag.
opcode
print "query opcode = ", $header->opcode, "
";
$header->opcode("UPDATE");
Gets or sets the query opcode (the purpose of the query).
aa
print "answer is ", $header->aa ? "" : "non-", "authoritative
";
$header->aa(0);
Gets or sets the authoritative answer flag.
tc
print "packet is ", $header->tc ? "" : "not ", "truncated
";
$header->tc(0);
Gets or sets the truncated packet flag.
rd
print "recursion was ", $header->rd ? "" : "not ", "desired
";
$header->rd(0);
Gets or sets the recursion desired flag.
cd
print "checking was ", $header->cd ? "not" : "", "desired
";
$header->cd(0);
Gets or sets the checking disabled flag.
ra
print "recursion is ", $header->ra ? "" : "not ", "available
";
$header->ra(0);
Gets or sets the recursion available flag.
rcode
print "query response code = ", $header->rcode, "
";
$header->rcode("SERVFAIL");
Gets or sets the query response code (the status of the query).
qdcount, zocount
print "# of question records: ", $header->qdcount, "
";
$header->qdcount(2);
Gets or sets the number of records in the question section of the packet. In dynamic update packets, this field is known as "zocount" and
refers to the number of RRs in the zone section.
ancount, prcount
print "# of answer records: ", $header->ancount, "
";
$header->ancount(5);
Gets or sets the number of records in the answer section of the packet. In dynamic update packets, this field is known as "prcount" and
refers to the number of RRs in the prerequisite section.
nscount, upcount
print "# of authority records: ", $header->nscount, "
";
$header->nscount(2);
Gets or sets the number of records in the authority section of the packet. In dynamic update packets, this field is known as "upcount" and
refers to the number of RRs in the update section.
arcount, adcount
print "# of additional records: ", $header->arcount, "
";
$header->arcount(3);
Gets or sets the number of records in the additional section of the packet. In dynamic update packets, this field is known as "adcount".
data
$hdata = $header->data;
Returns the header data in binary format, appropriate for use in a DNS query packet.
COPYRIGHT
Copyright (c) 1997-2000 Michael Fuhr. All rights reserved. This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
SEE ALSO perl(1), Net::DNS, Net::DNS::Resolver, Net::DNS::Packet, Net::DNS::Update, Net::DNS::Question, Net::DNS::RR, RFC 1035 Section 4.1.1
perl v5.8.0 2002-10-12 Net::DNS::Header(3)