(Some of) My signatures

Copyright 2008 Davide Brini

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Here are some signatures I use when posting on Usenet, with the nickname Dave B, to protect my email address from spambots.

This is the signature I used when posting to comp.unix.shell (warning: may not work with some implementations of sed):

echo 0|sed 's909=mO#3u)o19;s0#0co*)].O0;s()(0bu}=(;s#}#m1$"?0^2{#;
s)")9v2@3%"9$);s[%[o]x(.$e#![;sz(z^+.z;su+ur!z"au;sxzxd?_{g)/x;:b;
s/\(\(.\).\)\(\(..\)*\)\(\(.\).\)\(\(..\)*#.*\6.*\2.*\)/\5\3\1\7/;
tb'|awk '{while((i+=2)<=length($1)-24)a=a substr($1,i,1);print a}'

The above has been replaced with the following, which uses (AFAICT) pure POSIX sh (yes, with some useless cosmetic addition to achieve alignment):

sh -c 'a123=$4;b=$2;j=4464346045754551;h=$1;r=4165722075063752;s=$3;
while [ "$r" != "" ];do x=0;y=;w=${#h};while [ $x -lt $(($w-1)) ];do
y=$y?;x=$((x+1));done;o=$o$s${h%$y}${j%$y}${r%$y};r=${r#?};j=${j#?};
h=${h#?};done;eval "$a123 $b$o$b"' sh 1111111111101110 \' '\' printf

And this is another one I use on comp.lang.awk, which had the (unexpected) honour of being included by Arnold Robbins in the GNU awk manual:

awk 'BEGIN{O="~"~"~";o="=="=="==";o+=+o;x=O""O;while(X++<=x+o+o)c=c"%c";
printf c,(x-O)*(x-O),x*(x-o)-o,x*(x-O)+x-O-o,+x*(x-O)-x+o,X*(o*o+O)+x-O,
X*(X-x)-o*o,(x+X)*o*o+o,x*(X-x)-O-O,x-O+(O+o+X+x)*(o+O),X*X-X*(x-O)-x+O,
O+X*(o*(o+O)+O),+x+O+X*o,x*(x-o),(o+X+x)*o*o-(x-O-O),O+(X-x)*(X+O),x-O}'

Hopefully, others will follow (as soon as I have half a day to waste :-)).