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Full Discussion: Problem in perl program in printing all the entries
Top Forums Shell Programming and Scripting Problem in perl program in printing all the entries Post 302651843 by pludi on Wednesday 6th of June 2012 08:59:10 AM
Old 06-06-2012
For readability, here's a formatted and numbered version:
Code:
  1 #!/usr/bin/perl
  2 $/ = "\n\n";
  3 open( DATA, 'mutationsonly.txt' );
  4
  5 # or die("Could not open mutationsonly file.");
  6 open( MYOUTPUT, ">newmutations.txt" );
  7
  8 # or die ("could not open newmutations file.");
  9 my @records = <DATA>;
 10 close(MYOUTPUT);
 11 close(DATA);
 12 foreach my $record (@records) {
 13     chomp;
 14     my $find = /^\*FIELD\*\sAV$/;
 15     if ( $record =~ m/ $find / ) {
 16         print "$record";
 17     }
 18 }

My guess is that in line 14 you're trying to assign a regular expression to a variable, and use that in the match below. To do that, you'd have to use the qr// construct, and it would be much more efficient to do that outside the loop, instead of each time again.

Other than that, you can probably do the same thing with a simple grep {}, eg
Code:
#!/usr/bin/perl
#$/ = "\n\n";
open( DATA, 'mutationsonly.txt' );

# or die("Could not open mutationsonly file.");
open( MYOUTPUT, ">newmutations.txt" );

# or die ("could not open newmutations file.");
my @records = <DATA>;
close(MYOUTPUT);
close(DATA);
print grep { /^\*FIELD\*\sAV$/ } @records;

 

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LEARN ABOUT PHP

rar_entry_get

RAR_ENTRY_GET(3)							 1							  RAR_ENTRY_GET(3)

RarArchive::getEntry - Get entry object from the RAR archive

       Object oriented style (method):

SYNOPSIS

       public RarEntry RarArchive::getEntry (string  $entryname)

DESCRIPTION

       Procedural style:
       RarEntry rar_entry_get (RarArchive  $rarfile, string  $entryname)

	Get entry object (file or directory) from the RAR archive.

       Note

	      You can also get entry objects using RarArchive::getEntries.

	      Note that a RAR archive can have multiple entries with the same name; this method will retrieve only the first.

PARAMETERS

	      o $rarfile
		- A RarArchive object, opened with rar_open(3).

	      o $entryname
		- Path to the entry within the RAR archive.

	      Note

		     The path must be the same returned by RarEntry::getName.

RETURN VALUES

	Returns the matching RarEntry object or FALSE on failure.

EXAMPLES

       Example #1

	      Object oriented style

	      <?php
	      $rar_arch = RarArchive::open('solid.rar');
	      if ($rar_arch === FALSE)
		  die("Could not open RAR archive.");
	      $rar_entry = $rar_arch->getEntry('tese.txt');
	      if ($rar_entry === FALSE)
		  die("Could get such entry");
	      echo get_class($rar_entry)."
";
	      echo $rar_entry;
	      $rar_arch->close();
	      ?>

	      The above example will output something similar to:

	      RarEntry
	      RarEntry for file "tese.txt" (23b93a7a)

       Example #2

	      Procedural style

	      <?php
	      $rar_arch = rar_open('solid.rar');
	      if ($rar_arch === FALSE)
		  die("Could not open RAR archive.");
	      $rar_entry = rar_entry_get($rar_arch, 'tese.txt');
	      if ($rar_entry === FALSE)
		  die("Could get such entry");
	      echo get_class($rar_entry)."
";
	      echo $rar_entry;
	      rar_close($rar_arch);
	      ?>

SEE ALSO

       RarArchive::getEntries, rar:// wrapper.

PHP Documentation Group 													  RAR_ENTRY_GET(3)
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