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Coding for external user input in perl

I am new to perl and coding and not entirely sure where/what to search for so this question may have been asked before.

I finnished writing a program in perl and would like to know what code to use that allows me to enter a variable (name) outside the program without needing to specify it in the coding - I was told there is a way to execute the program outside of putty (I use putty) and that it asks me to enter the variable/s beforehand.

in the coding the variable is specified in the beginning as:

my $name='xxx';

after which the name is used for specifying which files to use etc. I have over 30 different names that I need to run individually so it would be much easier if I can just type it in as part of the program instead of changing the coding each time in putty.

Hope my question is clear - I'm still learning the different terms and syntax.

Thanks!

Solution 
  • use strict;
use warnings; 

open(IN,$ARGV[0]) or die "Cannot open $ARGV[0]:$!\n";
my @in = <IN>;
close(IN);

my $name='';
foreach my $in(@in){
   chomp($in);   
   $name = $in;
   ###your code here
 }

    your fle sample

    name1

    name2

    name3

    Run your programs as

    perl program.pl filename.txt

    Update:(after OP's comment)

    my $name = <STDIN>;

    this will prompt for a user input.