Hi all,
I need some help with the following script. I have a text file (invs_to_load.txt that contains the filenames of all the files I want to append into a single file (this file should contain the name of the 1st file in the list possibly).
I am aware that I should be using unix cat command to achieve this but I am not sure if it is possible to loop through the file and append each file or even if this is the best solution. I have included my script here to provide a better idea of what I'm doing. Thank you in advance for your help. 
$dirtoget = "/tmp/invs";
opendir(FILEDIR, $dirtoget) || die ("Cannot open $dirtoget");
@thefiles = grep -T, <$dirtoget/*>;  #Store the filenames into an arra
+y
closedir(FILEDIR);

#Calling another perl script that takes each filename as argument 
#and splits the file into multiple files for further processing

foreach $file (@thefiles) {    
@split_files = `perl split_invs.pl $file`) || next;  
chomp(@split_files);

$temp = join(" ", @split_files); 
`/tmp/get_acct_info.sh $temp`;  #This script takes each split file and
+ reads some information & 
                #outputs the info to the file output_acct_list.out


#Load the main accounts file into a hash to compare against another fi
+le 
#and output accounts only in output_accts_list

$origaccts = "/tmp/main_accounts.txt";
open(FILEHANDLE, $origaccts) || die ("Cannot open $origaccts");
%lookup = map {chomp; $_ => undef} <FILEHANDLE>;
close(FILEHANDLE);

$acctlist = "/tmp/output_acct_list.out"; #Open the file output_acct_li
+st for reading
open(ACCTLISTFILE, $banlist) || die ("Cannot open $acctlist");

#Output file that will contain filename of the bills that should be lo
+aded into our system
open($output, '>', '/tmp/invs_load.txt') || 
die ("Cannot open output file /tmp/invs_load.txt");

while ($line = <ACCTLISTFILE>){
  chomp $line;
  ($filename, undef, undef, undef, $account) = split /\t/, $line;
  next if exists $lookup{$account};
  print $output "$filename\n";   #Print the filename of bills to be lo
+aded to invs_load.txt
}

<Here I want to retrieve the filenames from the above file and append 
+these files (in order) into a single file prior to loading it into ou
+r system> 

    }

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In reply to appending files by Anonymous Monk

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