First off, your regex is a little strange. "$2015-01-22" is nonsensical because $ means "match the end of the line", and there's nothing after the end of the line. Did you mean ^, "match the beginning of the line"? It will also take your spaces literally, so "(...) | (...)" means "match this block and a space, or match a space then this block".
But anyways, grep can't can't remember what happened in past lines. It's not a programming language.
awk can remember what's happened in past lines, because it is.
If it finds lines matching "2015-01-22.*NS Primary Error" it sets the variable A true. If it finds lines matching "NS Primary Error.*2015-01-22" it sets the variable B true. If, once all lines are read, both A and B are true, it returns 0(i.e. success), otherwise returns 1 (failure) to the shell.
Hi
I am trying to use this command:
egrep '^a{2,6}$' testexpr4D
to retreive lines with 2,3,4,5, or 6 a's in a file .
The file testexpr4D has entries like:
a
aa
aaa
aaaa
aaaaa
aaaaaa
123456
ABCDEF
I was expecting to see 5 lines in the output but nothing happens.
Can anyone help... (10 Replies)
Hi,
Can someone help me count this line:
Say I have a file (file1.txt) that contains below:
11/16 13:08:19.5436 18096 --- Generating a <reading> event
11/16 13:08:19.7784 18096 ---- Sending a <writing> event
11/16 13:08:37.4516 18096 --- Generating a <reading> event
11/16... (1 Reply)
I have a script that does the following. It searches a listing of directories with specific extensions and then formats a wc on those files. The code looks like this
find <directory> -name '*.js' -o -name '*.html' | awk '{print \"wc -l \"$1}' > file \n"
The result is a file with the "wc -l"... (7 Replies)
I want to egrep for certain fields which are not existing in the current log files and am getting errors for that...
egrep "'^20090220.14'|'^20090220.15'|'^20090220.16'|'^20090220.17'|'^20090220.18'"
Some of the times are in future and logs don't have those entries and I get errors for them... (1 Reply)
Hello all,
I'm a first time poster and a unix/linux noob so please be understanding.
I am trying this command below:
# egrep -c "Oct".+"Connect: ppp" /var/log/messages*
/var/log/messages:53
/var/log/messages.1:35
/var/log/messages.2:63
/var/log/messages.3:27
/var/log/messages.4:12
... (1 Reply)
Hi, i have a a bunch of directories that are always named with six lowercase alpha's and either one or two numeric's (but no more)
so for example names could be
qwerty1
qwerty9
qwerty10
qwerty67
I am currently using two pattern matches to capture these names
echo $DIR |... (8 Replies)
test.txt:
appleboy
orangeletter
sweetdeal
catracer
conducivelot
I want to only grep out lines that contain "appleboy" AND "sweetdeal". however, the closest thing to this that i can think of is this:
cat test.txt | egrep "appleboy|sweetdeal"
problem is this only searches for all... (9 Replies)
Hi all
I need your help to get a high-performance solution.
I am working on a extensive script to automate file restores using the bprestore tool on a Solaris 5.10 server (bash 3.00). I will only paste the needed parts of the script to avoid any confusion.
To use the script the user has to... (2 Replies)
Its really 2 questions, but both are pretty basic.
Linux Redhat
1. Need to do a search and replace on a file.
I need to append '--' (comment out the line) to specific lines based on a wildcard search.
So if I Have
GRANT SOME_ROLE_OR_USER ...
I dont care what comes after that.... (2 Replies)
Hi
I have a txt file and I would like to use egrep without using -v option to exclude the lines which matches with multiple Strings.
Let's say I have some text in the txt file. The command should not fetch lines if they have strings something like
CAT MAT DAT
The command should fetch me... (4 Replies)
Discussion started by: Sathwik
4 Replies
LEARN ABOUT REDHAT
net::dns::question
Net::DNS::Question(3) User Contributed Perl Documentation Net::DNS::Question(3)NAME
Net::DNS::Question - DNS question class
SYNOPSIS
"use Net::DNS::Question"
DESCRIPTION
A "Net::DNS::Question" object represents a record in the question section of a DNS packet.
METHODS
new
$question = Net::DNS::Question->new("example.com", "MX", "IN");
Creates a question object from the domain, type, and class passed as arguments.
qname, zname
print "qname = ", $question->qname, "
";
print "zname = ", $question->zname, "
";
Returns the domain name. In dynamic update packets, this field is known as "zname" and refers to the zone name.
qtype, ztype
print "qtype = ", $question->qtype, "
";
print "ztype = ", $question->ztype, "
";
Returns the record type. In dymamic update packets, this field is known as "ztype" and refers to the zone type (must be SOA).
qclass, zclass
print "qclass = ", $question->qclass, "
";
print "zclass = ", $question->zclass, "
";
Returns the record class. In dynamic update packets, this field is known as "zclass" and refers to the zone's class.
print
$question->print;
Prints the question record on the standard output.
string
print $qr->string, "
";
Returns a string representation of the question record.
data
$qdata = $question->data($packet, $offset);
Returns the question record in binary format suitable for inclusion in a DNS packet.
Arguments are a "Net::DNS::Packet" object and the offset within that packet's data where the "Net::DNS::Question" record is to be stored.
This information is necessary for using compressed domain names.
COPYRIGHT
Copyright (c) 1997-2002 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::Header, Net::DNS::RR, RFC 1035 Section 4.1.2
perl v5.8.0 2002-10-12 Net::DNS::Question(3)