shell实例--九九乘法表

for i in {1..9};do for j in $( seq 1 $i );do echo -n "$j * $i = $(($j*$i))";echo -n $'\t';done;echo;done

脚本方式：

#!/bin/bash

for i in {1..9}

do

  for j in $( seq 1 $i )

  do

    echo -n "$j * $i = $(($j*$i))"

    echo -n $'\t'

  done

  echo

done