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Top Forums Shell Programming and Scripting makefile to convert .jpeg to .png thumnails Post 302375824 by henningbaer on Sunday 29th of November 2009 06:13:41 PM
Old 11-29-2009
makefile to convert .jpeg to .png thumnails

Hello!

I'm desperately trying to write a makefile that converts and scales jpeg files to png files in subdirectories

I want to use netpbm, so I just need the commands:
anytopnm
pnmscale
pnmtopng


For various reasons i want to use a makefile. This is the first time i use the make tool and it's a too complicated for me.
Here is my attempt, without resizing untill now:

Code:
all :
    find -name "*.jpeg" > alljpeg.txt
    @anytopnm `cat alljpeg.txt | sort | uniq -u` > $@.png 
    @echo "$@" >> clean.log

but it doesn't work, I already had six attempts but always the same, I'm reading now for 4 hours an I still think I#m not any closer to a solution.

Any help will be appreciated!

Clueless greetings

Henningbaer
 

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Mojolicious::Command::generate::makefile(3pm)		User Contributed Perl Documentation	     Mojolicious::Command::generate::makefile(3pm)

NAME
Mojolicious::Command::generate::makefile - Makefile generator command SYNOPSIS
use Mojolicious::Command::generate::makefile; my $makefile = Mojolicious::Command::generate::makefile->new; $makefile->run(@ARGV); DESCRIPTION
Mojolicious::Command::generate::makefile generates "Makefile.PL" files for applications. ATTRIBUTES
Mojolicious::Command::generate::makefile inherits all attributes from Mojo::Command and implements the following new ones. "description" my $description = $makefile->description; $makefile = $makefile->description('Foo!'); Short description of this command, used for the command list. "usage" my $usage = $makefile->usage; $makefile = $makefile->usage('Foo!'); Usage information for this command, used for the help screen. METHODS
Mojolicious::Command::generate::makefile inherits all methods from Mojo::Command and implements the following new ones. "run" $makefile->run(@ARGV); Run this command. SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojolicious::Command::generate::makefile(3pm)
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