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Full Discussion: Sorting data
Top Forums UNIX for Dummies Questions & Answers Sorting data Post 302407133 by drewk on Wednesday 24th of March 2010 03:56:05 PM
Old 03-24-2010
Please be more specific and use code tags. Thanks!

Are you saying that you have a list like this:

Code:
File:
Rice Food
Carrots Food
Beans Food
Plates Kitchen
Fork Kitchen
Knives Kitchen

And that each line of the file contains two words. This second word is the category, and the first word is the data in that category. ie,

Code:
Food:
   Rice
   Carrots
   Beans

Kitchen:
   Plates
   Forks
   Knifes


If that is true, it is relatively trivial.

Code:
$ cat dat.txt
Rice Food
Carrots Food
Beans Food
Plates Kitchen
Fork Kitchen
Knives Kitchen

#!/usr/bin/perl 

use strict;
use warnings;

my %list;
my $key;
my $val;

while (<>) {
	if (/^(\w*) (\w*)$/) {
		$key=$2; 
		$val=$1;
		push @{ $list{ $key } }, $val; 
	}	
}	

foreach $key (sort keys %list) { 
	print "$key:\n"; 
	foreach (sort @{ $list{$key} } ) { 
		print "\t$_\n"; 
	} 
} 

$ thatperlsc.pl dat.txt
Food:
	Beans
	Carrots
	Rice
Kitchen:
	Fork
	Knives
	Plates

 

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IRSEND(1)							   User Commands							 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.9.0-pre1 October 2010 IRSEND(1)
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