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Full Discussion: Issue with Unix cat command
Top Forums Shell Programming and Scripting Issue with Unix cat command Post 302142710 by matrixmadhan on Monday 29th of October 2007 08:49:40 AM
Old 10-29-2007
Code:
#! /opt/third-party/bin/perl

use strict;

my @contents;
my @files_arr;

my $DIR1 = "/source/directory/";
my $big = "thebigfile.txt";

opendir(DIR, $DIR1) || die "Unable to open files in Dir : $DIR1 <$!> \n";
  @files_arr = readdir(DIR);
closedir(DIR);

open(BIG, ">", $big) or die "Unable to open file $big <$!> \n";

foreach (@files_arr) {
  if( ! /^\./ && ! /^\.\./ ) {
    print "$_\n";
    $_ = $DIR1 . $_;
    open(FILE, "<", $_) or die "Unable to open file $_ <$!> \n";
      @contents = <FILE>;
    close(FILE);
    print BIG "@contents";
  }
}

close(BIG);

exit 0

 

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LEARN ABOUT SUNOS

closedir

closedir(3C)						   Standard C Library Functions 					      closedir(3C)

NAME

       closedir - close a directory stream

SYNOPSIS

       #include <sys/types.h>
       #include <dirent.h>

       int closedir(DIR *dirp);

DESCRIPTION

       The closedir() function closes the directory stream referred to by the argument dirp. Upon return, the value of dirp may no longer point to
       an accessible object of the type DIR. If a file descriptor is used to implement type DIR, that file descriptor will be closed.

RETURN VALUES

       Upon successful completion, closedir() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The closedir() function may fail if:

       EBADF	       The dirp argument does not refer to an open directory stream.

       EINTR	       The closedir() function was interrupted by a signal.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       opendir(3C), attributes(5), standards(5)

SunOS 5.10							    24 Jul 2002 						      closedir(3C)
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