Dear Wise Monks,

I would like , when I open a file, to select some elements

Here is my start file 
AAD;   ;CCR;365
TEC;UTF;TDE;450
TRE;   ;FTE;164
TEC;URT;TDE;687
ERT;   ;ETR;567
TEC;UGC;TDE;687

[download]

I would like to work only on the lines for which the second element is not empty, that means the following lines : 
TEC;UTF;TDE;450
TEC;URT;TDE;687
TEC;UGC;TDE;687

[download]

Could you tell me where did I go wrong? Thanks 
#!/usr/bin/perl
use strict;
use warnings;
use diagnostics;

# la commade "use strict" permet d'être plus rigoureux

##############################################
# TASKS MADE BY THE SCRIPT 
##############################################

# the task of this script is to look for the following aircraft_id

##################################
##  ARGUMENTS OF THE SCRIPT 
##################################

#####################################
# do not forget the $ before the ARGV
#####################################


#  THE FIRST ARGUMENT :
# we have to give the name of the regulation which will help us to ope
+n the first file
# the name of the first file to open is :  Regulation_Slot_List_${reg_
+id}
my ${Reg_Id} = "$ARGV[0]";


################# END OF THE DECLARATION OF THE ARGUMENTS

#################  IN WHICH DIRECTORY WE ARE ########################

my $Current_Dir = `pwd`;
print STDOUT "the current directory is $Current_Dir";

#####################################################################



################### OPEN THE ANALYSIS INFILE #########################
+###
# open the first file 
# do not forget the "" to declare  my ${analysis_file} = 

my ${analysis_file} = "Analysis_Regulation_Slot_List_${Reg_Id}_last.cs
+v";
open(INFILE,"${analysis_file}") or die "Can't open ${analysis_file} : 
+$!";
######################################################################
+#####


################### OPEN THE OUTFILE ############################
# open the first file 
# do not forget the "" to declare  my ${analysis_file} = 

my $outfile = "with_ALL_FT_${analysis_file}";

open(OUTFILE,">${outfile}") or die "Can't open ${outfile} : $!";
######################################################################
+#####





# we want to skip the first line of the INFILE
<INFILE>;

    while (<INFILE>){
    
    my @Elements = split(/;/,$_);    
    
        if ($Elements[1] ne '   '){
        print OUTFILE "$_";
        }
    }
close INFILE;
close OUTFILE;

[download]
update : proposition of code

In reply to select elements in a list by steph_bow

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