九九乘法表LINUX SHELL99

#!/bin/bash
i=1
while ((i<10)) ; do
j=1
while ((j<=i))
do
echo -n "$j$i=$(($i$j)) "
let j++
done
echo ""
let i++
done

#!/bin/bash
for ((i=1;i<10;i++));do
for ((j=1;j<=i;j++));do
let "chengji=ij"
echo -n "$j$i=$chengji "
done
echo
done