More Tweetable Scripts

A few more tweetable commandlines have emerged since I posted the last round-up.

From pupitetris, this little work of art:

a=1;for i in {1..34};do printf %$[40-${#a}]s"$(eval $(echo $a*$a|bc|sed 's/$/0/;s/\([0-9]\)/tput setab \1; echo -n \\ ;/g'))"\\n;a=1$a;done

This Linux-desktop specific commandline from Justin:

s=.o0O0o.o0O0o.o0O0o.o0O0o.o0O0o.o0O0o.o0;n(){ for x in `seq $1 $2 $3`;do notify-send ${s:0:x}; done };while :;do n 1 2 39;n 39 -2 1;done

And I wrote these two:

clear;for x in {0..150}; do y=`echo "12+6*s($x/6)"|bc -l|cut -d. -f 1`;echo -en \\e[$y\;"$(($x/2))"HX; sleep .1;done

s=`seq 9|shuf`;while :;do for((i=0;i<15;i+=2));do echo $s;a=${s:i:1};b=${s:i+2:1};[ $a -gt $b ]&&s=${s:0:i}$b\ $a${s:i+3};sleep .2;done;done

That last one is a bubble-sort implementation in 140 characters. Unfortunately, 140 characters is one character too many for a twitter post. Can you figure out how to shave off a character or two? (You’ll need a recent version of coreutils for shuf).

Thanks to some helpful hints in the comments (abock, knipknap, Mitch) we’re down to 137 chars:

s=`shuf -i1-9`;while i=;do for((;i<15;i+=2));do echo $s;a=${s:i:1};b=${s:i+2:1};[ $a \> $b ]&&s=${s:0:i}$b\ $a${s:i+3};sleep .2;done;done

I’ll be posting more on twitter as people send them in.