<fizzie> ` for w in benvenuto bienvenido bienvenue bonvenon tervetuloa v\xc3\xa4lkommen velkomin velkommen welcome welkom wercome willkommen \xd0\xb4\xd0\xbe\xd0\xb1\xd1\x80\xd0\xbe-\xd0\xbf\xd0\xbe\xd0\xb6\xd0\xb0\xd0\xbb\xd0\xbe\xd0\xb2\xd0\xb0\xd1\x82\xd1\x8c; do sed -i -e \'2s|^|my $bin = $ENV{"HACKENV"}."/bin"; |;s|bin/[@?]|$&|g\' /hackenv/bin/$w; done

sep="//"
[[ "$1" == ?*"$sep"* ]] || { echo 'Usage: `le/[/]rn <key>//<wisdom>' >&2 ; exit 1; }
key="$(echo "${1%%$sep*}" | lowercase)"
value="${1#*$sep}"
[ -e "$HACKENV/wisdom/$key" ] && verb="Relearned" || verb="Learned"
echo "$value" > "$(echo-p "$HACKENV/wisdom/$key")" && echo -n "$verb '$key': $(echo "$value" | sed 's.^[ ].0,04&.')"