Shell script implementation 99 multiplication table

2. #!/bin/bash
4. #for嵌套for循环
6. #9 *9 Multiplication Formula
8. Echo "for 99 multiplication table"
10. for ((I=1; i<=9;i++))
12. Do
14. For ((j=1;j<=9;j++))
16. Do
18. #当 $j less than or equal to $i, the multiplication table is printed on the screen
20. [ $j-le $i] && echo-n "$i * $j =$[$i * $j]"
22. Done
24. Echo '
26. Done
32. #9 *9 Multiplication Formula
34. # echo "Until 99 multiplication table"
36. # a=1
38. # b=1
40. # until [$a-GT 9]
42. # do
44. # until [$b-GT 9]
46. # do
48. # when $J is less than or equal to $i, the multiplication table is printed on the screen
50. # [$b-le $a] && echo-n "$a * $b =$[$a * $b]"
52. # b=$[$b + 1]
54. # Done
56. # echo '
58. # a=$[$a + 1]
60. # done
64. #9 *9 Multiplication Formula
66. # echo "While 99 multiplication table"
68. # I=1
70. # j=1
72. # while [$i-lt 10]
74. # do
76. # while [$j-lt]
78. # do
80. # when $J is less than or equal to $i, the multiplication table is printed on the screen
82. # [$j-le $i] && echo-n "$i * $j =$[$i * $j]"
84. # j=$[$j \+1]
86. # Done
88. # echo '
90. # i=$[$i \+1]
92. # done
96. #9 *9 Multiplication Formula
98. Echo "While with for 99 multiplication table"
100. I=1
102. While [ $i-lt]
104. Do
106. For ((j=1;j<=9;j++))
108. Do
110. #当 $j less than or equal to $i, the multiplication table is printed on the screen
112. [ $j-le $i] && echo-n "$i * $j =$[$i * $j]"
114. Done
116. Echo '
118. i=$[ $i +1]
120. Done
124. #9 *9 Multiplication Formula
126. Echo "until and for 99 multiplication table"
128. I=1
130. Until [ $i-gt 9]
132. Do
134. For ((j=1;j<=9;j++))
136. Do
138. #当 $j less than or equal to $i, the multiplication table is printed on the screen
140. [ $j-le $i] && echo-n "$i * $j =$[$i * $j]"
142. Done
144. Echo '
146. i=$[ $i +1]
148. Done
152. #9 *9 Multiplication Formula
154. # echo "Until with while 99 multiplication table"
156. # I=1
158. # j=1
160. # until [$i-GT 9]
162. # do
164. # while [$j-lt]
166. # do
168. # when $J is less than or equal to $i, the multiplication table is printed on the screen
170. # [$j-le $i] && echo-n "$i * $j =$[$i * $j]"
172. # j=$[$j +1]
174. # Done
176. # echo '
178. # i=$[$i +1]
180. # done

Shell script implementation 99 multiplication table