bblum@magrathea ~ $ echo zozzy                                                                                                                                                                        zozzy
bblum@magrathea ~ $ echo zozzy | sed s/z/zozzy/g                                                                                                                                                      zozzyozozzyzozzyy
bblum@magrathea ~ $ echo zozzy | sed s/z/zozzy/g | sed s/z/zozzy/g
zozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyy
bblum@magrathea ~ $ echo zozzy | sed s/z/zozzy/g | sed s/z/zozzy/g | sed s/z/zozzy/g
zozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyozozzyozozzyzozzyyozozzyozozzyzozzyyzozzyoz                                                                                                      ozzyzozzyyyzozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyy
bblum@magrathea ~ $ echo zozzy | sed s/z/zozzy/g | sed s/z/zozzy/g | sed s/z/zozzy/g | sed s/z/z                                                                                                      ozzy/g
zozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyozozzyozozzyzozzyyozozzyozozzyzozzyyzozzyoz                                                                                                      ozzyzozzyyyzozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyyozozzyozozzyzozzyyozozzyozozzyz                                                                                                      ozzyyzozzyozozzyzozzyyyozozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyzozzyozozzyzozzyyoz                                                                                                      ozzyozozzyzozzyyzozzyozozzyzozzyyyyzozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyozozzyoz                                                                                                      ozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozzyyyzozzyozozzyzozzyyozozzyozozzyzozzyyzozzyozozzyzozz                                                                                                      yyyyy