Re^4: sed command with variable in perl

in reply to Re^3: sed command with variable in perl
in thread sed command with variable in perl

Try

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

my $filename_pdb = 'myhalf1.pdb';
my $filename_in  = "topol1.top"; 
my $filename_out = "$filename_in.new"; 

open my $fh_pdb, '<', $filename_pdb 
     or die "opening '$filename_pdb': $!";

my $sol1 = grep /HW1/,<$fh_pdb>;
close $fh_pdb; 
print "\$sol1 = $sol1\n";

open my $fh_in, '<', $filename_in 
     or die "opening '$filename_in': $!"; 

open my $fh_out, '>', $filename_out 
     or die "opening '$filename_out': $!"; 

print "processing '$filename_in' \n"; 
my $count = 0;
while (<$fh_in>) { 
  if ( s/SOL .*/SOL $sol1/g ){ # change as required 
    ++$count;
  }
  print $fh_out $_; 
} 
close $fh_in; 
close $fh_out;
print "$count lines changed\n";
[download]

poj

Comment on Re^4: sed command with variable in perl Download Code

Replies are listed 'Best First'.
Re^5: sed command with variable in perl by samira_saber (Novice) on Aug 16, 2017 at 10:31 UTC
Dear AnomalousMonk, Yes it worked, and I am so happy. Thank you for your big help. I cant believe that it is solved finally. It is more than one week which I try different solutions and you did it.	[reply]
Re^6: sed command with variable in perl by AnomalousMonk (Archbishop) on Aug 16, 2017 at 16:45 UTC
Actually, the monk you have to thank is poj, for it is the code in his or her reply that seems to have done the trick. But if I have been of any help at all, I'm quite satisfied. Give a man a fish: `<%-{-{-{-<`	[reply] [d/l]

In Section Seekers of Perl Wisdom