Shell script printing and other waist triangles

• Shell script printing isosceles triangle

#!/bin/bash



for ((i=1;i<= 9;i++))

do

 for ((j=9;j>=i;j- -))

 do

 echo -n " "

 done



 for ((j=2;j<= i;j++))

 do

 echo -n "*"

 done

 for ((j=1;j<= i;j++))

 do

 echo -n "*"

 done

 echo

done

#!/bin/bash



for ((i=1;i<= 9;i++))

do

 for ((j=9;j>=i;j- -))

 do

 echo -n " "

 done



 for ((j=2;j<= i;j++))

 do

 echo -n "*"

 done

 for ((j=1;j<= i;j++))

 do

 echo -n "*"

 done

 echo

done