Eu achei mais fácil editar o /usr/share/backgrounds/contest/background-1.xml Aí eu só enumero as imagens que quero de 1 a 20, por exemplo, e jogo dentro do /usr/share/backgrounds/
Vi essa dica no OMGubuntu. Aqui vai o conteúdo dele. É só alterar o nome do arquivo (os meus estão ##.jpg) e a duração (do tempo estático e da transição, em segundos). Com isso você pode manter diferentes tipos de imagem apenas trocando o nome delas para o informado nesse xml. Tem um jeito de fazer aparecer na GUI da área de trabalho e manter vários conjuntos mas isso está no desk de casa e eu não lembro de cabeça. Segue: <background> <starttime> <year>2009</year> <month>08</month> <day>04</day> <hour>00</hour> <minute>00</minute> <second>00</second> </starttime><!-- This animation will start at midnight. --> <static> <duration>7200</duration> <file>/usr/share/backgrounds/01.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/01.jpg</from> <to>/usr/share/backgrounds/02.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/02.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/02.jpg</from> <to>/usr/share/backgrounds/03.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/03.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/03.jpg</from> <to>/usr/share/backgrounds/04.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/04.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/04.jpg</from> <to>/usr/share/backgrounds/05.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/05.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/05.jpg</from> <to>/usr/share/backgrounds/06.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/06.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/06.jpg</from> <to>/usr/share/backgrounds/07.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/07.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/07.jpg</from> <to>/usr/share/backgrounds/08.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/08.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/08.jpg</from> <to>/usr/share/backgrounds/09.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/09.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/09.jpg</from> <to>/usr/share/backgrounds/10.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/10.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/10.jpg</from> <to>/usr/share/backgrounds/11.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/11.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/11.jpg</from> <to>/usr/share/backgrounds/12.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/12.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/12.jpg</from> <to>/usr/share/backgrounds/13.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/13.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/13.jpg</from> <to>/usr/share/backgrounds/14.jpg</to> </transition> <static> <duration>7200</duration> <file>/usr/share/backgrounds/14.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/14.jpg</from> <to>/usr/share/backgrounds/15.jpg</to> </transition><static> <duration>7200</duration> <file>/usr/share/backgrounds/15.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/15.jpg</from> <to>/usr/share/backgrounds/16.jpg</to> </transition><static> <duration>7200</duration> <file>/usr/share/backgrounds/16.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/16.jpg</from> <to>/usr/share/backgrounds/17.jpg</to> </transition><static> <duration>7200</duration> <file>/usr/share/backgrounds/17.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/17.jpg</from> <to>/usr/share/backgrounds/18.jpg</to> </transition><static> <duration>7200</duration> <file>/usr/share/backgrounds/18.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/18.jpg</from> <to>/usr/share/backgrounds/19.jpg</to> </transition><static> <duration>7200</duration> <file>/usr/share/backgrounds/19.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/19.jpg</from> <to>/usr/share/backgrounds/20.jpg</to> </transition><static> <duration>7200</duration> <file>/usr/share/backgrounds/20.jpg</file> </static> <transition> <duration>5.0</duration> <from>/usr/share/backgrounds/20.jpg</from> <to>/usr/share/backgrounds/01.jpg</to> </transition></background> _________________ Fabiano Bovo Quer um Sistema Operacional melhor, mais rápido, livre de vírus e ainda grátis?? Instale o Linux Ubuntu!! http://www.ubuntu-br.org | http://pt.wikipedia.org/wiki/Ubuntu > Date: Wed, 11 Jan 2012 22:39:58 -0200 > From: wilsonmari...@ig.com.br > To: ubuntu-br@lists.ubuntu.com > Subject: [Ubuntu-BR] Papel de parede > > Olá pra tod@s!!! > > Estou buscando um aplicativo/programa que tenha imagens diversas que eu > possa configurar para trocar de imagem diariamente, semanalmente e/ou > mensalmente. > Quando eu usava o outro sistema operacional tinha o Webshot!! > Alguém pode me ajudar?! > > Um abraço, > Wilson > -- > Mais sobre o Ubuntu em português: http://www.ubuntu-br.org/comece > > Lista de discussão Ubuntu Brasil > Histórico, descadastramento e outras opções: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-br -- Mais sobre o Ubuntu em português: http://www.ubuntu-br.org/comece Lista de discussão Ubuntu Brasil Histórico, descadastramento e outras opções: https://lists.ubuntu.com/mailman/listinfo/ubuntu-br