九九乘法表-bash

 1 #!/bin/env sh
 2 
 3 declare -i p z
 4 
 5 for ((p=1;p<=9;p++));do
 6     for ((z=1;z<=p;z++));do
 7         echo -e "${z}X${p}=$[p*z]\t\c"
 8     done
 9     echo
10 done
11 
12 echo "############################################################################"
13 
14 declare -i x=c=1
15 
16 while [ $x -le 9 ];do
17     c=1
18     while [ $c -le $x ];do
19         echo -e "${c}X${x}=$((x*c))\t\c"
20         let c++
21     done
22     let x++
23     echo
24 done