Thanks a tonne elixir_sinari and durden_tyler for the effort and the time that you spent on explaining this code !! Your lucid explanations are very intuitive and give a clear picture.
@durden_tyler, I just have one trivial question. Why in the script the non-greedy regular expression character '?' is ignored for the "HOST" pattern matching string (when I include it, I get the same correct output yet eager to know why it is not included) also what wrong in explicitly mentioning the "PORT" pattern-matching string in the 2nd back-reference group?
Code:
perl -lne 'print "$1\n$2" if /(HOST.*?)\)\((PORT.*?)\)/' tnsnames.ora
Last edited by royalibrahim; 02-15-2013 at 05:39 AM..
Hello All,
Currently i am working on a logic in PERL scripting ...
But i am sort of stuck up, can any one please help.
Here goes.
1. Search for a pattern in a file
2. If the pattern matched lets say 10 lines
2.1 Reterive the first line and check for another pattern
2.1.1 if... (1 Reply)
Hi,
I have doubt regarding the Anonymous hash. For creating a object we are generally using Anonymous hash.
My Doubt is:
Why we are only using Anonymous hash?? Instead of Anonymous hash can we use global hash variable and take its reference for creating an object using same bless function??... (0 Replies)
hi guys linux noob here wanting to learn linux scripting, i need help with a backup script that not only allows me to back up my files but restore them to my own personal directory, had a look at some of the coding from the scripts section on this site but still lost.
any help is much appreciated (8 Replies)
Hello,
In my system, I have implemented various alerts.
An example:
#!/bin/sh
BILL=bill@company.com
#GETS THE CURRENT NO OF SESSIONS OPENED IN ORACLE
SESSION_NO=`sqlplus -s ${TEST_USER} <<EOF
SET HEAD OFF
@/home/alerts/vlib/cur_session_no.sql
EOF`
#MANUALLY SET A THRESHOLD FOR THE... (1 Reply)
Hi,
I am hitting my head for weeks now,
I run 3 sites that are basically serving 1 community, a job search, a wiki and a social networking platform.
Rather than promote all three I want to create the illusion that its all 1 website, and I identify 3 areas to make this possible.
1) unified... (7 Replies)
I am debugging a script and have stuck up at one code line
awk -F , '{if (match($3,001)) { print $2 } }' Master20120307090511.tmp
The Master20120307090511.tmp is
001,ARE , 001
002,ARE , 002
003,ARE , 003
006,ARE , 006
011,ARE , 011
012,ARE , 012
What happens is when i fire this ... (5 Replies)
Hi,
I have a requirement as follows. Have 3 files. Need to match up the data in each one of them and sum up the data by a field and display it. example given below.
File 1 : Name, Emp id
File 2 : Empid, Subject,
File 3 : Subject, Score, Class
Match Emp id in File 1 and File 2 and then... (7 Replies)
Hi All,
Good Morning !
Can anyone help me understand the following scenario.
Scenario 1 : 2 LINUX Scripts(Process 1 & 2) are trying to copy the same file (lets call it FileA.txt) to the same directory (lets say, /home/abc/zyz) at the same time. If both copy is happening at the same... (9 Replies)
Hi,
I am breaking my head to understand the below line of code in perl:
next if $pid = fork; # Parent goes to next server.
die "fork failed: $!" unless defined $pid;
Can anyone please explain me in detail as I am a slow learner?
Thanks,
Ali. (2 Replies)
#!/bin/bash
n=$l; typeset -a v
x=$(< input.dat)
check(){
if; then
sed 's/Test/Proc/g' file.sh >fl.sh
else
exit 13
fi
}
check $n
while ; do
x=`expr $x -l`
v=$x
done
less fi.sh l>/dev/null&& echo yes || exit 1
echo v= ${v
}
exit 0
I have file.sh and input.dat in the current... (3 Replies)
Discussion started by: bananasprite
3 Replies
LEARN ABOUT DEBIAN
test::script
Test::Script(3pm) User Contributed Perl Documentation Test::Script(3pm)NAME
Test::Script - Basic cross-platform tests for scripts
DESCRIPTION
The intent of this module is to provide a series of basic tests for 80% of the testing you will need to do for scripts in the script (or
bin as is also commonly used) paths of your Perl distribution.
Further, it aims to provide this functionality with perfect platform-compatibility, and in a way that is as unobtrusive as possible.
That is, if the program works on a platform, then Test::Script should always work on that platform as well. Anything less than 100% is
considered unacceptable.
In doing so, it is hoped that Test::Script can become a module that you can safely make a dependency of all your modules, without risking
that your module won't on some platform because of the dependency.
Where a clash exists between wanting more functionality and maintaining platform safety, this module will err on the side of platform
safety.
FUNCTIONS
script_compiles
script_compiles( 'script/foo.pl', 'Main script compiles' );
The "script_compiles" test calls the script with "perl -c script.pl", and checks that it returns without error.
The path it should be passed is a relative unix-format script name. This will be localised when running "perl -c" and if the test fails the
local name used will be shown in the diagnostic output.
Note also that the test will be run with the same perl interpreter that is running the test script (and not with the default system perl).
This will also be shown in the diagnostic output on failure.
script_runs
script_runs( 'script/foo.pl', 'Main script runs' );
The "script_runs" test executes the script with "perl script.pl" and checks that it returns success.
The path it should be passed is a relative unix-format script name. This will be localised when running "perl -c" and if the test fails the
local name used will be shown in the diagnostic output.
The test will be run with the same perl interpreter that is running the test script (and not with the default system perl). This will also
be shown in the diagnostic output on failure.
SUPPORT
All bugs should be filed via the bug tracker at
<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Script>
For other issues, or commercial enhancement and support, contact the author.
AUTHOR
Adam Kennedy <adamk@cpan.org>
SEE ALSO
prove, <http://ali.as/>
COPYRIGHT
Copyright 2006 - 2009 Adam Kennedy.
This program is free software; you can redistribute 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.
perl v5.10.1 2009-11-24 Test::Script(3pm)
02-15-2013
!! Your lucid explanations are very intuitive and give a clear picture.