Shell编程之matrix---装逼又炫酷

代码如下：

#!/bin/bash
blue="\033[0;34m"
brightblue="\033[1;34m"
cyan="\033[0;36m"
brightcyan="\033[1;36m"
green="\033[0;32m"
brightgreen="\033[1;32m"
red="\033[0;31m"
brightred="\033[1;31m"
white="\033[1;37m"
black="\033[0;30m"
grey="\033[0;37m"
darkgrey="\033[1;30m"


colors=($blue $brightgreen $grey)
spacing=${1:-100}
scroll=${2:-0}
screenlines=$(expr `tput lines` - 1 + $scroll)
screencols=$(expr `tput cols` / 2 - 1)
chars=(a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 0 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z)    ##请在此处修改你想显示的字符

count=${#chars[@]}
colorcount=${#colors[@]}

trap "tput sgr0; clear; exit" SIGTERM SIGINT

if [[ $1 =~ "-h" ]]
  then
  echo "display a matrix screen in the terminal"
  echo "usage:          matrix [SPACING [SCROLL]]"
  echo "example: matrix 100 0"
  exit 0
fi

clear
tput cup 0 0

while :
  do
  for i in $(eval echo {1..$screenlines})
    do
     for i in $(eval echo {1..$screenlines})
      do
      rand=$(($RANDOM%$spacing))
      case $rand in
       0)
        printf "${colors[$RANDOM%$colorcount]}${chars[$RANDOM%$count]} ";;
       1)
        printf "  ";;
       *)
        printf "\033[2C";;
      esac
     done
     printf "\n"
    done
    tput cup 0 0
done

  

 

  
 
 

  
1
  
2
  
3
  
4
  
5
  
6
  
7
  
8
  
9
  
10
  
11
  
12
  
13
  
14
  
15
  
16
  
17
  
18
  
19
  
20
  
21
  
22
  
23
  
24
  
25
  
26
  
27
  
28
  
29
  
30
  
31
  
32
  
33
  
34
  
35
  
36
  
37
  
38
  
39
  
40
  
41
  
42
  
43
  
44
  
45
  
46
  
47
  
48
  
49
  
50
  
51
  
52
  
53
  
54
  
55
  
56
  
57
  
58
 

执行效果如下：

文章来源: blog.csdn.net，作者：指剑，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/fly1574/article/details/88615633