1 #!/bin/bash
 2 # desc:    print Multiplication table 
 3 # author:  sx202
 4 # time:    20180212
 5 # version: v1.0
 6 for i in {1..9}
 7 do
 8         for j in {1..9}
 9         do
10         if [ $j -le $i ];then
11                 echo -e "$j * $i = $[i*j] \c"
12         else
13                 echo
14                 break
15         fi
16         done
17         [ $i -eq 9 ] && echo
18 done