Is there a way to grep for something and then print out 10 lines after it.
for example if I want to grep for a word, then output the following 10 or whatever number of lines after the word. (5 Replies)
Using shell scripts, I use grep to find the word “error” in a log file:
grep error this.log.
How can I print or get the line 3 lines below the line that word “error” is located?
Thanks in advance for your response. (9 Replies)
Hi All,
I have a log file and I want to parse the logfile with a script.A sample text is shown below:
I would grep on "return code " on this file. Any idea how the lines above and below the grep patterns could also be extracted.
Thanks!
nua7
The runLoggingInstall return code is 0... (3 Replies)
Executed the following if conditions .. and got different results .
only (( )) gave correct o/p with all scenarios .
Can anybody please let me know what is the difference between and ] and ((condition)) when used with if condition.
And why each condition gave different result.
1.... (2 Replies)
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
Hi All,
I'm trying to grep for 3 patterns in a string of gibberish. It so happens that each line is appended by a date/time stamp and i was able to figure out how to extract only the datetime.
here is the string..
i have to display
tinker tailor soldier spy
Please can some help... (2 Replies)
Hello everyone,
I am trying to create function or script to send email from an address book file.
Here is the file format i have,
Susan:Miller:M:123 Main Street:Philadelphia:PA:17101:666-645-6666:Susan.Miller@gmail.com:07/12/1979 Robert:Langan:S:32 North Avenue:San... (5 Replies)
Hi all,
I have two files, chap.txt and complex.txt.
chap.txt looks like this:
a
d
l
m
r
k
complex.txt looks like this:
a c d e l m n j
a d l p q r
c p r m
......... (7 Replies)
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
Need a script that can find text in a file and replace it accordingly.
This is the file I have:
while IFS=',' read -r f1 f2 f3
do
{
nohup /home/testuser/dbmaintenance/sys_offline_maintenance.sh $f1 $f2 $f3 > $f2.out &
}
done < "/home/testuser/dbmaintenance/week1offlineserver.txt"
In... (4 Replies)
Discussion started by: singhhe
4 Replies
LEARN ABOUT DEBIAN
set::infinite::_recurrence
Set::Infinite::_recurrence(3pm) User Contributed Perl Documentation Set::Infinite::_recurrence(3pm)NAME
Set::Infinite::_recurrence - Extends Set::Infinite with recurrence functions
SYNOPSIS
$recurrence = $base_set->_recurrence ( &next, &previous );
DESCRIPTION
This is an internal class used by the DateTime::Set module. The API is subject to change.
It provides all functionality provided by Set::Infinite, plus the ability to define recurrences with arbitrary objects, such as dates.
METHODS
o _recurrence ( &next, &previous )
Creates a recurrence set. The set is defined inside a 'base set'.
$recurrence = $base_set->_recurrence ( &next, &previous );
The recurrence functions take one argument, and return the 'next' or the 'previous' occurence.
Example: defines the set of all 'integer numbers':
use strict;
use Set::Infinite::_recurrence;
use POSIX qw(floor);
# define the recurrence span
my $forever = Set::Infinite::_recurrence->new(
Set::Infinite::_recurrence::NEG_INFINITY,
Set::Infinite::_recurrence::INFINITY
);
my $recurrence = $forever->_recurrence(
sub { # next
floor( $_[0] + 1 )
},
sub { # previous
my $tmp = floor( $_[0] );
$tmp < $_[0] ? $tmp : $_[0] - 1
},
);
print "sample recurrence ",
$recurrence->intersection( -5, 5 ), "
";
# sample recurrence -5,-4,-3,-2,-1,0,1,2,3,4,5
{
my $x = 234.567;
print "next occurence after $x = ",
$recurrence->{param}[0]->( $x ), "
"; # 235
print "previous occurence before $x = ",
$recurrence->{param}[2]->( $x ), "
"; # 234
}
{
my $x = 234;
print "next occurence after $x = ",
$recurrence->{param}[0]->( $x ), "
"; # 235
print "previous occurence before $x = ",
$recurrence->{param}[2]->( $x ), "
"; # 233
}
o is_forever
Returns true if the set is a single span, ranging from -Infinity to Infinity.
o _is_recurrence
Returns true if the set is an unbounded recurrence, ranging from -Infinity to Infinity.
CONSTANTS
o INFINITY
The "Infinity" value.
o NEG_INFINITY
The "-Infinity" value.
SUPPORT
Support is offered through the "datetime@perl.org" mailing list.
Please report bugs using rt.cpan.org
AUTHOR
Flavio Soibelmann Glock <fglock@gmail.com>
The recurrence generation algorithm is based on an idea from Dave Rolsky.
COPYRIGHT
Copyright (c) 2003 Flavio Soibelmann Glock. All rights reserved. This program is free software; you can distribute it and/or modify it
under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
SEE ALSO
Set::Infinite
DateTime::Set
For details on the Perl DateTime Suite project please see <http://datetime.perl.org>.
perl v5.12.4 2011-08-22 Set::Infinite::_recurrence(3pm)
07-21-2016
