1liner in Christmas

Christmas_1liner.sh

# create "Christmas"
echo 4368726973746d6173 | gsed 's/./&\n/g' | xargs -n 2 | gsed 's/^/:/g' | xargs | tr -d ' ' | nkf --cap-inpu

# V2
echo `echo '3^5*37*43*113'|bc``echo '2*3^2*17*241'|bc`d6173|gsed 's/./&\n/g'|xargs -n 2|sed 's/^/:/g'|xargs|tr -d ' '|nkf --cap-input

# tree
jot 10 1 10|awk '{print "paste -d . <(yes \" \"|head -"11-$1"|tr -d \"\\n\") <(yes \"#\"|head -"$1*2-1"|tr -d \"\\n\")"}'|bash

# tree on ruby (http://www.reddit.com/r/programming/comments/er5ym/ruby_code_drawing_a_christmas_tree_in_less_than/)
ruby -e "((1..20).to_a+[6]*4).each{|i|puts ('#'*i*2).center(80)};puts;puts 'Merry Christmas'.center(80)"

# add star
ruby -e "puts ' '+'☆'.center(80);((1..20).to_a+[6]*4).each{|i|puts ('#'*i*2).center(80)};puts;puts 'Merry Christmas'.center(80)"