I am new to perl and would like to parse text file content into hash and get the values for each line from the text file. For example, in example file below, I wanted to get the path for each line using $info{}{}{} method. My main code is what I tried but not working properly. </op>

#!/usr/bin/perl use strict; use warnings; my $file = "/path/to/config/config.txt"; my %info = parse($file); my %fruits; foreach $fruit (@fruits) { #get $address for each line in input file $path=$info{$name}{$fruit}{path}; #get $name for each line in input file $name=$info{name}{$fruit}{$path}; } sub parse { my $file = shift; my %info; return if !(-e $file); open(my $fh, "<", $file) or die "Can't open < $file: $!"; my $msg = "-I-: Reading from config file: $file\n"; print $msg; #print LOG $msg; my %seen; while (<$fh>) { if (($_=~/^#/)||($_=~/^\s+$/)) {next;} my @fields = split(" ", $_); my ($name, $fruit, $p) = @fields; if (!$seen{$fruit}) { push (@fruits,$fruit); $seen{$fruit}=1; } $info{$name}{$fruit}{path} = $p; } close $fh; return %info; }

Input file (with format of 3 categories: name fruit path, name and fruit could be same or different) Example:

Albert apple /path/to/somewhere/a Jack pineapple /path/to/somewhere/b Jack apple /path/to/somewhere/c Dex jackfruit /path/to/somewhere/d


In reply to Perl parse text file using hash by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.