Concate string and operator from file data

Dev Shed Forums Sponsor:

September 28th, 2012, 10:59 PM

fahrial

Registered User

Join Date: Sep 2012

Posts: 1

Time spent in forums: 46 m 25 sec
Reputation Power: 0

Concate string and operator from file data

need help please

i have data.txt like this

<name>,<class>,<score1>,<score2>,<total>
fahrial,1A,9,8,17
novi,1B,9,7,16
arka,1C,9,10,19
<name>,<class>,<score1>,<score2>,<total>
arfa,2A,8,8,16
ari,2B,8,7,15
dira,2C,7,10,17

I want to add a string ".SD" in the second column (<class>) and value in the last column divided into 2, so the result will be like this

<name>,<class>,<score1>,<score2>,<total>
fahrial,1A.SD,9,8,8.5
novi,1B.SD,9,7,8
arka,1C.SD,9,10,9.5
<name>,<class>,<score1>,<score2>,<total>
arfa,2A.SD,8,8,8
ari,2B.SD,8,7,7.5
dira,2C.SD,7,10,8.5

and also how to if I want to delete the header column
<name>,<class>,<score1>,<score2>,<total>

September 29th, 2012, 05:03 AM

Laurent_R

Contributing User

Join Date: Jun 2012

Posts: 506

Time spent in forums: 4 Days 19 h 5 m 2 sec
Reputation Power: 385

There are many ways to do this. One of the simplest is to split you input with the commas.

Something like this:

Perl Code:

Original - Perl Code
use strict; use warnings; open my $INPUT, "<", "filename.txt" or die "could not open filename.txt $! \n"; while (my $line = <$INPUT>) { next if $line =~ /<name>/; # remove the header my ($name, $class, $score1, $score2, $total) = split /,/, $line; $class .= ".SD"; $total /= 2 ; print "$name, $class, $score1, $score2, $total \n"; }

 
use strict;
use warnings;
 
open my $INPUT, "<", "filename.txt" or die "could not open filename.txt $! \n";
while (my $line = <$INPUT>) {
     next if $line =~ /<name>/; # remove the header
     my ($name, $class, $score1, $score2, $total) = split /,/, $line;
     $class .= ".SD";
     $total /= 2 ;
     print "$name, $class, $score1, $score2, $total \n";
}

Viewing: Dev Shed Forums > Programming Languages > Perl Programming > Concate string and operator from file data

« Previous Thread | Next Thread »

Developer Shed Advertisers and Affiliates

Thread Tools	Search this Thread
Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off

View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox

Forum Jump