in reply to Copy data from one file and add it to another

#!/usr/bin/perl
use warnings;
use strict;

my $infile = 'test.txt';

open INFO,  '<',  $infile or die "could not open '$infile' $!";
open FILEA, '<',  'outputfromvariantparser1.txt' or die "could not ope
+n 'outputfromvariantparser1.txt' $!";
open FILEB, '>>', 'output.txt' or die "could not open 'output.txt' $!"
+;

my @raw_data = <FILEA>;

while ( my $line = <INFO> ) {
    $line =~ s/TEXT TO BE REPLACED.*/$raw_data[0]/s;
    print FILEB $line;
    push @raw_data, shift @raw_data;
    }

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Re^2: Copy data from one file and add it to another
by olus (Curate) on Apr 26, 2008 at 10:47 UTC

    Nice solution. Liked particularly the way you make the array go on circles. There is one thing though. Given that input data the regexp is not considering the |. Maybe $line =~ s/\| TEXT TO BE REPLACED.*/ $raw_data[0]/s;

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Re^2: Copy data from one file and add it to another
by Anonymous Monk on Jan 24, 2018 at 09:27 UTC

    I have two files one is a Text file where I have some different Patterns and another one is ASCII file where I have code to generate a test pattern. I need Perl Script where I can transfer data pattern to that ASCII file, after particular word "PI".

    File 1-

    Result  is : 10000000     10000000     10000000     10000000     10000
+000     00000011 00000011 00000011 00000011 00000011
  10000001 10000001 10000001 10000001 10000001
  11000000 11000000 11000000 11000000 11000000
  01100000 01100000 01100000 01100000 01100000

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    File 2-

    CHAIN_TEST =

    pattern = 0;
    apply "grp1_load" 0 =
        chain "chain1" = "010";
    end;
    force   "PI" "XX0XXXXXX" 1;
    measure "PO" "XX" 2;
    apply "grp1_unload" 3 =
        chain "chain1" = "010";
    end;

    pattern = 1;
    apply "grp1_load" 0 =
        chain "chain1" = "101";
    end;
    force   "PI" "XX0XXXXXX" 1;
    measure "PO" "XX" 2;
    apply "grp1_unload" 3 =
        chain "chain1" = "101";
    end;

end;

SCAN_TEST =

    pattern = 0;
    apply "grp1_load" 0 =
        chain "chain1" = "010";
    end;
    force   "PI" "100000000" 1;
    measure "PO" "10" 2;
    pulse "/CK" 3;
    apply "grp1_unload" 4 =
        chain "chain1" = "010";
    end;

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    2018-01-25 Athanasius added code and paragraph tags

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      Put a unique marker in the file eg <PATTERN> where you want the substitution.

      #!/usr/bin/perl
use strict;
use warnings;

my $infile1 = 'file1.txt';
my $infile2 = 'file2.txt';
my $outfile = 'result.txt';

#open IN,'<',$infile1 or die "$infile1 : $!";
#my @file1 = <IN>;
#chomp(@file1);
#close IN;
my @file1 = qw(10000000 00000011 
               10000001 11000000 01100000  );

#open IN,'<',$infile2 or die "$infile2 : $!";
#my @file2 = <IN>;
#close IN;
my @file2 = <DATA>;

open OUT,'>',$outfile or die "$outfile : $!";
for my $pattern (@file1){
  print "Test pattern is $pattern\n";
  for (@file2){
    my $line = $_; # copy to preserve @file2
    $line =~ s/<PATTERN>/$pattern/;
    print OUT $line;
  }
}
close OUT;

__DATA__
SCAN_TEST =

    pattern = 0;
    apply "grp1_load" 0 =
        chain "chain1" = "010";
    end;
    force   "PI" "<PATTERN>" 1;
    measure "PO" "10" 2;
    pulse "/CK" 3;
    apply "grp1_unload" 4 =
        chain "chain1" = "010";
    end;

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        Thank you so much for your help.It's a big favor to me.
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