linux 99乘法表

[root@aoi ~]# cat 99
#!/bin/bash
for i in `seq 1 9`
do
for n in `seq 1 9`
do
echo -ne " $(($i*$n))"
  if [ $n -ge $i ]
  then
   echo -e '\n'
  break
fi
done
  echo
done
[root@aoi ~]# sh 99
1


2 4


3 6 9


4 8 12 16


5 10 15 20 25


6 12 18 24 30 36


7 14 21 28 35 42 49


8 16 24 32 40 48 56 64


9 18 27 36 45 54 63 72 81