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Full Discussion: Making a hash map from a records file
Top Forums Shell Programming and Scripting Making a hash map from a records file Post 302470227 by deindorfer on Tuesday 9th of November 2010 01:34:22 PM
Old 11-09-2010
Simple Perl Script to Make a Hash Table out of incoming, comma separated record
This code assumes your data is in an external file ( which I called dat.txt ), and that the data has two fields which are comma separated.

I did not make any attempt to golf it ( make brief ), because I don't know what you want to do with the data structure once you have it built.

Code:
open ( F, 'dat.txt' ) || die;

my $hashmap;
while (<F>) {

    chomp;
    my ($k, $v);
    ( $k, $v ) = split /,/, $_;
    $hashmap->{$k} = $v;

}
close F;

print map "$_: $hashmap->{$_}\n", sort keys %$hashmap;

Hope that helps
Last edited by deindorfer; 11-09-2010 at 02:39 PM.. Reason: spelling mistake
 

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LEARN ABOUT X11R4

vconsole.conf

VCONSOLE.CONF(5)						   vconsole.conf						  VCONSOLE.CONF(5)

NAME

       vconsole.conf - configuration file for the virtual console

SYNOPSIS

       /etc/vconsole.conf

DESCRIPTION

       The /etc/vconsole.conf file configures the virtual console, i.e. keyboard mapping and console font.

       The basic file format of the vconsole.conf is a newline-separated list environment-like shell-compatible variable assignments. It is
       possible to source the configuration from shell scripts, however, beyond mere variable assignments no shell features are supported,
       allowing applications to read the file without implementing a shell compatible execution engine.

       Note that the kernel command line options vconsole.keymap=, vconsole.keymap.toggle=, vconsole.font=, vconsole.font.map=,
       vconsole.font.unimap= may be used to override the console settings at boot.

       Depending on the operating system other configuration files might be checked for configuration of the virtual console as well, however only
       as fallback.

OPTIONS

       The following options are understood:

       KEYMAP=, KEYMAP_TOGGLE=
	   Configures the key mapping table of for they keyboard.  KEYMAP= defaults to us if not set. The KEYMAP_TOGGLE= can be used to configured
	   a second toggle keymap and is by default unset.

       FONT=, FONT_MAP=, FONT_UNIMAP=
	   Configures the console font, the console map and the unicode font map.  FONT= defaults to latarcyrheb-sun16.

EXAMPLE

       Example 1. German keyboard and console

       /etc/vconsole.conf:

	   KEYMAP=de-latin1
	   FONT=latarcyrheb-sun16

SEE ALSO

       systemd(1), loadkeys(1), setfont(8), locale.conf(5)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd 							    10/07/2013							  VCONSOLE.CONF(5)
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