aqui va cualquier comando/oneliner que me parezca interesante
probando fork con bash
~ > :(){ :|:& };:
agregando los mails de SPAM a tu blacklist de spamassassin
~ > perl -0777 -ne 'if(/From.* <(.*@.*)>/){ system "spamassassin --add-addr-to-blacklist=$1"; }' /home/lalo/Mail/SPAM/*
~ > rm -rf /home/lalo/Mail/SPAM/*
random passwords
~ > openssl rand 10 -base64
highlighted with vim, donde *.c es el tipo de archivos que se a pasar a html
~ > for i in `ls *.c`; do vim -c "runtime syntax/2html.vim | wq | q" $i; done
probando el smtp
~ > cat << EOF > mail.sh
if ping -c1 mail.dom
then {
echo HELO mail.dom
sleep 3
echo "MAIL FROM: test@dom"
sleep 3
echo "RCPT TO: post@dom"
sleep 3
echo "DATA"
sleep 3
echo "From: test
echo "To: post@dom"
echo "Subject: test"
echo "test"
echo "."
sleep 3
echo "QUIT"
} | telnet mail.dom 25
fi
EOF
~ > chmod 755 mail.sh; vim -c "% s/dom/dominio\.cl/g | wq" mail.sh; ./mail.sh
u2l && s2u
~ > ls -1 | while read old; do new=`echo $old | tr 'A-Z' 'a-z' | sed 's/ /_/g'`; mv "$old" $new; done
convertir un texto a HTML, con php CLI
~ > php -r '$a=file("ARCHIVO"); foreach($a as $v){ $b=trim(htmlentities($v)); echo $b . "<br/>\n"; }'