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Colaboração: Rubens Queiroz de Almeida
Data de Publicação: 01 de Julho de 1997
A seguir encontra-se a shell script que faz a implementação da automatização do serviço mantido pela lista Dicas-L. A explicação encontra-se dentro dos comentários da shell.
#!/bin/ksh
#
#
# Definicao das variaveis
# A variavel TIP_FILE e usada varias vezes no decorrer deste script
# Todos os arquivos de dicas recebem o nome de acordo com a data
# do dia em que sera veiculada, de modo a facilitar a automatizacao
# do envio das mensagens. O comando
# date +%y+%m+%d gera como saida uma string como 970630, que ira
# servir como prefixo de todos os arquivos gerados.
#
PATH=/home/queiroz/bin:/bin:/usr/bin:/etc:/usr/sbin:/usr/ucb:/usr/local/bin
TIP_FILE=""date +%y%m%d""
#
# Todos os arquivos gerados encontram-se em /usr/local/www/docs/dicas-l
# Dai o deslocamento para la.
#
cd /usr/local/www/docs/dicas-l
#
# Criacao dos arquivos .doc e temporarios
# A criacao destes arquivos e feita atraves da edicao do arquivo original.
# o arquivo de sufixo .src.
# Sao substituidas as diretivas originais, descritas na dica anterior,
# por diretivas html, para criacao do arquivo html.
# Para a criacao do arquivo de extensao .doc, as diretivas sao eliminadas
#
# Os comandos ao editor foram espacejados para facilitar a compreensao
# do que esta se passando. Observar que todas as diretivas para conversao
# em diretivas html, contidas no arquivo .src, encontram-se na primeira
# posicao.
#
# Apos a substituicao das diretivas, e gravado o arquivo html
# w! $TIP_FILE.tmp
# Em seguida, as diretivas sao eliminadas e e' gravado entao o arquivo
# de extensao .doc:
# w! $TIP_FILE.doc
# Apos esta etapa e' encerrada a edicao. O arquivo de extensao .src
# permanece inalterado.
#
ed $TIP_FILE.src << EOF
g:^\~: s:$:\~\~:=
g:^\~: s::<H1><FONT COLOR="#B22222">:=
g:\~\~$: s::</FONT></H1>:=
2s:^:<HR><P>:
g:^--: s::<HR>:
g:^\.\.: s::<PRE><FONT COLOR="#0000FF">:
g:^;;: s::</FONT></PRE>:
g:^\.: s::<P>:
w! $TIP_FILE.tmp
g:<H1>: s::
g:<PRE><FONT COLOR="#0000FF">: s::
g:<FONT COLOR="#B22222">: s::
g:</FONT></H1>: s::
g:<P>: s::
g:</P>: s::
g:</FONT></PRE>: s::
g:</H1>: s::
g:<HR>:s::--------------------------------------------------------------------:
w! $TIP_FILE.doc
q
EOF
#
# Montagem do arquivo html e definicao da tag <TITLE>[Dicas-L] ...</TITLE>
# O arquivo html final e criado a partir da concatenacao de tres outros:
# 1. O arquivo de cabecalho (dica.head.html)
# 2. O arquivo temporario, criado na edicao do arquivo de extensao .src
# ($TIP_FILE.tmp)
# 3. O arquivo de rodape (dica.tail.html)
#
cat dica.head.html $TIP_FILE.tmp dica.tail.html > $TIP_FILE.html
#
# A seguir, o arquivo html gerado e editado para inclusao do
# titulo e da data de criacao
# O titulo esta sempre localizado na linha de numero 4
#
ex $TIP_FILE.html << EOF
4s/Dicas-L/[Dicas-L] ""head -n 1 $TIP_FILE.doc""
g:Última Modificação\: DATA:s:DATA:""date +%d/%m/%y"":
w
q
EOF
#
# Remocao dos acentos do arquivo .doc
# Todos os acentos do arquivo de extensao .doc sao removidos
# para gerar o arquivo de extensao .txt, que e' o arquivo que
# sera enviado aos assinantes da lista.
# Para isto utilizamos o shell script chamado tiraacento, que
# ja foi discutido nesta lista
#
tiraacento $TIP_FILE.doc $TIP_FILE.txt
#
# Inclusao mensagem da dicas-l no arquivo .txt
# Neste ponto sao incluidas as instrucoes sobre como se descadastrar
# da lista contidas no arquivo tail.txt
#
cat tail.txt >> $TIP_FILE.txt
#
# Inclusao da dica do dia na listagem geral
# A listagem de todas as dicas e' tambem atualizada diariamente de maneira
# a permitir que os usuarios tenham o acesso direto a toda a documentacao
# ja criada.
#
echo "<P><IMG SRC="/icons/b042.gif" HEIGHT=21 WIDTH=21><A HREF="$TIP_FILE.html">""head -n 1 $TIP_FILE.doc""</A></P>" >> listagem.$$.html
#
# Atualizacao arquivo listagem.body.html
# Criacao da listagem de dicas
# A listagem de dicas e' criada a partir da concatenacao de outros arquivos
# como exemplificado abaixo. Nesta listagem, a dica mais recente sempre
# e a primeira a aparecer na listagem.
#
cat listagem.$$.html listagem.body.html > listagem.body.tmp
mv listagem.body.tmp listagem.body.html
cat listagem.head.html listagem.body.html listagem.tail.html > listagem.html
#
# Atualiza Indice
# E gerado tambem um arquivo chamado 00index.txt, tambem atualizado
# diariamente e colocado no servidor ftp anonimo da Unicamp
# http://ftp.unicamp.br
#
echo "$TIP_FILE.[doc|txt] --- ""head -n 1 $TIP_FILE.txt""" >> 00index.txt
#
# Atualiza repositório DICAS-L
# Transferencia dos arquivos gerados para o servidor ftp
# anonimo da Unicamp
#
ftp -ni ftp.unicamp.br << EOF
user queiroz
cd /pub/pub/dicas-l
mput 00index.txt $TIP_FILE.txt $TIP_FILE.doc
quit
EOF
#
# Envia a mensagem para os assinantes
#
for user in ""awk '{print $1}' /usr/server/lists/DICAS-L/.subscribers""
do
mail -s "[DICAS-L] ""head -n 1 $TIP_FILE.txt""" $user < $TIP_FILE.txt
echo $user
done
#
# Remocao arquivos de trabalho
#
rm *.tmp listagem.$$.html
A seguir encontra-se a listagem dos arquivos de cabeçalho e de rodapé utilizados:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<TITLE>Dicas-L</TITLE>
<META NAME="GENERATOR" CONTENT="Mozilla/3.0Gold (X11; I; AIX 1) [Netscape]">
</HEAD>
<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#0000EE" VLINK="#551A8B" ALINK="#FF0000">
<P><H1 ALIGN=RIGHT><A HREF="http://www.dicas-l.com.br"><IMG SRC="dicas-l.gif" BORDER=0 HEIGHT=80 WIDTH=150></A></H1></DIV>
<HR WIDTH="100%"> <FONT SIZE=-1> <BR><A HREF="http://www.unicamp.br">Universidade Estadual de Campinas</A> <BR><A HREF="http://www.unicamp.br/CCUEC">Centro de Computação</A> <BR>Autor:<A HREF="mailto:queiroz@ccuec.unicamp.br">Rubens Queiroz de Almeida</A> <BR>Última Modificação: DATA </FONT></P> </BODY> </HTML>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<TITLE>Dicas-L - Sumario</TITLE>
<META NAME="GENERATOR" CONTENT="Mozilla/3.0Gold (X11; I; AIX 1) [Netscape]">
</HEAD>
<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#0000EE" VLINK="#551A8B" ALINK="#FF0000">
<H1 ALIGN=RIGHT><A HREF="http://www.dicas-l.com.br"><IMG SRC="dicas-l.gif" BORDER=0 HEIGHT=80 WIDTH=150></A></H1></DIV>
</BODY>
</HTML>
<P><IMG SRC=/icons/b042.gif HEIGHT=21 WIDTH=21><A HREF=970627.html>Caracteres invisíveis</A></P>
<P><IMG SRC=/icons/b042.gif HEIGHT=21 WIDTH=21><A HREF=970626.html>O comando sort (4)</A></P>
<P><IMG SRC=/icons/b042.gif HEIGHT=21 WIDTH=21><A HREF=970625.html>O comando sort (3)</A></P>
.... e muito mais
=======
DICAS-L
=======
Este diretorio contem a lista completa das dicas veiculadas na
lista dicas-l. As dicas diarias podem ser encontradas em dois
arquivos com extensao .[doc|txt] e extensao .txt. Os arquivos com
extensao .[doc|txt] sao acentuados ao passo que os arquivos com extensao
txt nao sao.
As dicas sao identificadas pelo dia em que foram veiculadas e por
sua extensao ([doc|txt] ou txt). Desta forma o arquivo que contem a dica
do dia 11 de abril de 1997 se chamara 110497.txt ou 110497.[doc|txt].
As dicas encontram-se em ftp.unicamp.br:/pub/dicas-l. Em breve
estas dicas estarao disponiveis tambem atraves do servidor Web
do Centro de Computacao da Unicamp (http://www.unicamp.br/CCUEC).
970303.[doc|txt] --- O comando find
970304.[doc|txt] --- Dicas uso gzip
etc, etc, etc
===================================================================== SRC HTML ===================================================================== ~ <H1><FONT COLOR="#B22222">= -- <HR> .. <PRE><FONT COLOR="#0000FF"> ;; </FONT></PRE> . <P> ===================================================================== == Dica Humorística :-)== = Fit the Nineteenth: Bastard Operator from Hell #14= [Bastard Operator From Hell] Updated: Tuesday 14 November 1995 BOFH © 1990-1995 by Simon Travaglia and Datamation. All rights reserved. Don't ask how I got back, I just did. Suffice to say that work frowns upon management material that uses electrodes to gain client information. Especially when you do it to the boss's in-laws. That's HIS entertainment. So I'm back in the saddle. Unfortunately, that means there's a surplus of operators in the computer room. One slam of the tape safe door later, the problem is solved. The knocking dies down in a couple of hours, so I guess the safes really *are* airtight. To welcome myself back, I send a message out saying there's a shutdown in 10 minutes. 5 minutes later I shut the system down. I love doing that. I see the hard-disk activity lights flicker as the "disk recovery" phase of startup run through, globally deleting journal files. Funny how we always start up with lots of free disk.. I just get Wolfenstein started and the phone rings. What the hell, I almost missed it while I was away, so I answer it. "Computer Room" I say "THAT WASN'T TEN MINUTES!!!!" the voice at the other end screams "What wasn't 10 minutes?" I ask in a pleasant manner. I can see that things have deteriorated in my absence. Spare the rod and spoil the rm -r, that's what I always say. "THAT! You said it was going to be te... >pause "This is the Operator; who did you expect it to be?" "Darren? Is that Darren?" "Uh, No. Darren.. Darren is... unavailable... at the moment." "Oh. Do you know when he'll be back in the control room?" "Probably around the time of our next backup - the year 2007 or sometime thereabouts I should imagine" He's toying with asking me if he can recover their files or not. I let him dangle for a few moments. "Was that all?", I say, nice as pie "Well.... NO, it doesn't matter" "Of course it doesn't. Would you like me to check if your files are ok?" I prompt "Would you? I'm a bit new to this system and I'm not too sure what to do" "Sure. What was your username?" Everything inside him is screaming at him not to say it - People beside him are screaming at him not to say it. He says it. You just can't tell some people. "Ok. Well, it looks ok to me, all your files are in perfect condition!" I say "THEY ARE!! GREAT!!" The relief in his voice is overwhelming clicketyclickety "Yep. Both your x-defaults and AND your newsrc file are ok" "But.. But what about my site monitoring data?" "Sorry?" "There were about 10 files in my research subdirectory, data I'd collected over the past year." "Oh. Well, I can't see anything. Perhaps you backed them up somewhere?" "I put a copy in my girlfriend's account.." "What was her username?" "Uh.... pause Is he going to do it? Is he? He does. Like running down a snail with a steamroller... clickety clickety "Nope, nothing there either. OH! Hang on, there looks like some form of journal file in your account, it's quite large... I think maybe you should login there and try to recover with it..." I cat about 100 man files together and slop them in his girlfriends account under then name "rsrch.j" "How do I do that?" "Ok; can you login yet?" "Yeah, I think so..... Ok, I'm logged in" "Ok, You need to run the file thru the mailer to clear the eigth bit, other- wise the journal recovery will probably choke with an instruction error" DUMMY MODE ON "Oh... How do I do that?" "Well, you have to type in `mail root "Ok!" "HANG ON! You have to type it with your nose." "WH..? WHY?" I flip the excuse card till something appropriate pops up. "HARDWARE STRESS FRACTURES" "Well, it's got to do with hardware stress fractures. You probably type too hard with your fingers which upsets the internals of the keyboard. It's got to do with dry joints and electromagnetic inductance" DUMMY MODE IRREVOCABLY ON "Oh. Ok" "Now, you've got to type it in 20 times" "Sure, ok" He hangs up. I ring campus security "Hey, we've got another crazy in the lab. Apparently he's typing with his nose. He might be armed..." 3 minutes later I hear the shots. I close his account, he won't be needing it any more.. The phone rings. It's my Mum. "Hi Ma, what can I do for you" "Simon, I've got a problem at work, the floppy disk with all my personal stuff on it is failing I think" "Oh. Ok. Well, have you got any nail polish remover and some cotton wool buds?" "Yes" "Ok, take your disk out, and clean that brown stuff off the inside of the disk. That's what gets the heads dirty. You should just have a nice clean plastic disk when you've cleaned it completely" "Oh, Ok Simon, Thanks" "You're welcome. Oh; remember that time you wouldn't let me go over to Graeme's place to watch videos when I was 11?" "Yeah, why?" "Oh, No reason.."
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