shell实现根据输入的文字打印出大号字符艺术

创建脚本

#!/bin/bash
# bigfont.sh - 纯 Shell 大字体库

# 定义大字体，每个字符 6 行
declare -A bigfont

# ---------------- 字母 ----------------
bigfont["A"]=" █████╗  
██╔══██╗ 
███████║ 
██╔══██║ 
██║  ██║ 
╚═╝  ╚═╝ "

bigfont["B"]="██████╗  
██╔══██╗ 
██████╔╝ 
██╔══██╗ 
██████╔╝ 
╚═════╝  "

bigfont["C"]=" ██████╗ 
██╔════╝ 
██║      
██║      
╚██████╗ 
 ╚═════╝ "

bigfont["D"]="██████╗  
██╔══██╗ 
██║  ██║ 
██║  ██║ 
██████╔╝ 
╚═════╝  "

bigfont["E"]="███████╗ 
██╔════╝ 
█████╗   
██╔══╝   
███████╗ 
╚══════╝ "

bigfont["F"]="███████╗ 
██╔════╝ 
█████╗   
██╔══╝   
██║      
╚═╝      "

bigfont["G"]=" ██████╗ 
██╔════╝ 
██║  ███╗
██║   ██║
╚██████╔╝
 ╚═════╝ "

bigfont["H"]="██╗  ██╗ 
██║  ██║ 
███████║ 
██╔══██║ 
██║  ██║ 
╚═╝  ╚═╝ "

bigfont["I"]="██╗
██║
██║
██║
██║
╚═╝"

bigfont["J"]="     ██╗ 
     ██║ 
     ██║ 
██   ██║ 
╚█████╔╝ 
 ╚════╝  "

bigfont["K"]="██╗  ██╗ 
██║ ██╔╝ 
█████╔╝  
██╔═██╗  
██║  ██╗ 
╚═╝  ╚═╝ "

bigfont["L"]="██╗      
██║      
██║      
██║      
███████╗ 
╚══════╝ "

bigfont["M"]="███╗   ███╗
████╗ ████║
██╔████╔██║
██║╚██╔╝██║
██║ ╚═╝ ██║
╚═╝     ╚═╝"

bigfont["N"]="███╗   ██╗
████╗  ██║
██╔██╗ ██║
██║╚██╗██║
██║ ╚████║
╚═╝  ╚═══╝"

bigfont["O"]=" ██████╗ 
██╔═══██╗
██║   ██║
██║   ██║
╚██████╔╝
 ╚═════╝ "

bigfont["P"]="██████╗  
██╔══██╗ 
██████╔╝ 
██╔═══╝  
██║      
╚═╝      "

bigfont["Q"]=" ██████╗  
██╔═══██╗
██║   ██║
██║▄▄ ██║
╚██████╔╝
 ╚══▀▀═╝ "

bigfont["R"]="██████╗  
██╔══██╗ 
██████╔╝ 
██╔═══╝  
██║      
╚═╝      "

bigfont["S"]="███████╗ 
██╔════╝ 
███████╗ 
╚════██║ 
███████║ 
╚══════╝ "

bigfont["T"]="████████╗
╚══██╔══╝
   ██║   
   ██║   
   ██║   
   ╚═╝   "

bigfont["U"]="██╗   ██╗
██║   ██║
██║   ██║
██║   ██║
╚██████╔╝
 ╚═════╝ "

bigfont["V"]="██╗   ██╗
██║   ██║
██║   ██║
╚██╗ ██╔╝
 ╚████╔╝ 
  ╚═══╝  "

bigfont["W"]="██╗    ██╗
██║    ██║
██║ █╗ ██║
██║███╗██║
╚███╔███╔╝
 ╚══╝╚══╝ "

bigfont["X"]="██╗  ██╗
╚██╗██╔╝
 ╚███╔╝ 
 ██╔██╗ 
██╔╝ ██╗
╚═╝  ╚═╝"

bigfont["Y"]="██╗   ██╗
╚██╗ ██╔╝
 ╚████╔╝ 
  ╚██╔╝  
   ██║   
   ╚═╝   "

bigfont["Z"]="███████╗
   ██╔╝  
  ██╔╝   
 ██╔╝    
██╔╝     
███████╗ "

# ---------------- 数字 ----------------
bigfont["0"]=" ██████╗ 
██╔═══██╗
██║   ██║
██║   ██║
╚██████╔╝
 ╚═════╝ "

bigfont["1"]="  ██╗    
 ███║    
  ╚██║   
   ██║   
   ██║   
   ╚═╝   "

bigfont["2"]="██████╗ 
╚════██╗
 █████╔╝
██╔═══╝ 
███████╗
╚══════╝"

bigfont["3"]="██████╗ 
╚════██╗
 █████╔╝
 ╚═══██╗
██████╔╝
╚═════╝ "

bigfont["4"]="██╗  ██╗
██║  ██║
███████║
╚════██║
     ██║
     ╚═╝"

bigfont["5"]="███████╗
██╔════╝
███████╗
╚════██║
███████║
╚══════╝"

bigfont["6"]=" ██████╗ 
██╔════╝ 
███████╗ 
██╔══██║ 
╚██████║ 
 ╚═════╝ "

bigfont["7"]="███████╗
╚════██║
    ██╔╝
   ██╔╝ 
  ██╔╝  
  ╚═╝   "

bigfont["8"]="███████╗
██╔══██╗
███████║
██╔══██║
███████║
╚══════╝"

bigfont["9"]="███████╗
██╔══██╗
███████║
╚════██║
███████║
╚══════╝"

# ---------------- 特殊字符 ----------------
bigfont[" "]="        
        
            
            
        
        "
        
bigfont["-"]="        
        
 ██████╗ 
 ╚═════╝ 
        
        "

bigfont["."]="        
        
        
        
        
  ██╗    
  ╚═╝    "

# ---------------- 打印函数 ----------------
print_big() {
    local input="$1"
    local lines=6  # 每个字符行数
    
    # 创建数组存储每行输出
    local output_lines=("" "" "" "" "" "")
    
    # 逐字符处理
    for ((j=0;j<${#input};j++)); do
        char="${input:j:1}"
        
        # 如果是小写字母，转换为大写
        if [[ "$char" =~ [a-z] ]]; then
            char=$(echo "$char" | tr 'a-z' 'A-Z')
        fi
        
        # 获取字符的6行表示
        if [[ -n "${bigfont[$char]}" ]]; then
            # 将字符的6行分割到数组
            IFS=$'\n' read -r -d '' -a char_lines <<< "${bigfont[$char]}"
            
            # 将每行添加到输出数组
            for ((i=0;i<lines;i++)); do
                # 如果字符行数不够，用空格补齐
                if [[ -n "${char_lines[$i]}" ]]; then
                    line_content="${char_lines[$i]}"
                else
                    line_content=""
                fi
                # 固定宽度：每个字符占10个字符宽度
                output_lines[$i]="${output_lines[$i]}${line_content}  "
            done
        else
            # 对于未定义的字符，用空格占位
            for ((i=0;i<lines;i++)); do
                output_lines[$i]="${output_lines[$i]}${char}           "
            done
        fi
    done
    
    # 打印所有行
    for ((i=0;i<lines;i++)); do
        echo "${output_lines[$i]}"
    done
}

# 测试函数
test_print() {
    echo "=== 测试数字 ==="
    print_big "1234567890"
    echo ""
    echo "=== 测试字母 ==="
    print_big "ABCDEFGHIJKL"
    print_big "MNOPQRSTUVWXYZ"
    echo ""
    echo "=== 测试混合 ==="
    print_big "HELLO 2024"
}

# 如果传入参数，则打印参数，否则运行测试
if [[ $# -gt 0 ]]; then
    print_big "$*"
else
    test_print
fi

运行测试

# 打印参数
./bigfont.sh "HELLO WORLD"

# 或者直接运行脚本测试
./bigfont.sh