Hi all,

After I succeeded in combining the two files into one using hash, I have a problem now to add one more column into the last column. So I have these two files: 



File1:

Item,Period,Waveform,Attributes,Sources
an_en11,200.00,{0 133},{ }
br_gh13,140.09,{0 59},{ }
ce_oy74,300.05,{0 230},{int_43}
dt_pp50,200.11,{0 122},{ }
er_tk02,305.47,{0 220},{ }
ef_yb41,200.05,{0 233},{ }

File2:

Item,Sink,Buffer,Cell,Slew,Path,Violation,Area 
dt_pp50,0,0,2,0.000,0.000,0,0.000
er_tk02,0,2,3,0.002,0.004,0,0.001
ef_yb41,0,1,5,0.000,0.000,0,0.000

[download]

I wish to generate the last column (%Skew) by using (Slew/Period)*100%. 

Item,Sink,Buffer,Cell,Slew,Path,Violation,Area,Period,%Skew
dt_pp50,0,0,2,0.000,0.000,0,0.000,200.11,(Slew/Period)x100%
er_tk02,0,2,3,0.002,0.004,0,0.001,305.47,(Slew/Period)x100%
ef_yb41,0,1,5,0.000,0.000,0,0.000,200.05,(Slew/Period)x100%

[download]

Is there any suggestion on what command should i use in my script to get the output? My code :

#! /usr/intel/bin/perl-w
use strict;
use warnings;

my %file1Hash;
my $value1;
    
open my $file1, "<","design.rpt.csv"; 
open my $file2, "<","summary.rpt.csv"; 
open my $outfile_1, ">", "combined.rpt.csv";

print $output_1 "Item, Sink, Bufer, Cells, Slew, Path, Violation, Area
+, Period, %Skew\n";
while(my $line = <$file1>){
        
    chomp $line; 
    my($key, $value1) = (split /,/, $line);
    if (defined $key) {
        $file1Hash{$key}= $value1;    
                
            }
    else {
        # print $line."\n";
            }     
    } 
        
while(my $line1 = <$file2>){ 
        
    chomp $line1; 
    my($key1) = (split /,/, $line1) ; 
        
    if (defined $file1Hash{$key1}) {
        print $outfile_1 $line1.",".$file1Hash{$key1}."\n";           
+ 
            } 
    else {
#         print $line1."\n";
            } 
} 

close $file1;
close $file2;
close $outfile_1;

[download]

Where should i start or how do i start?

In reply to How to add a new column into my csv file? by chaney123

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