图书管理系统shell

以下是一个简单的图书管理系统的Shell脚本示例，它包括图书的添加、查找、编辑、借阅和归还等功能：

#!/bin/bash

# 定义图书结构体
declare -A book

# 添加图书
function add_book() {
    echo "请输入图书编号："
    read id
    echo "请输入图书名称："
    read name
    echo "请输入图书作者："
    read author
    echo "请输入图书价格："
    read price
    book[$id]=$name,$author,$price
    echo "添加成功！"
}

# 查找图书
function search_book() {
    echo "请输入要查找的图书编号："
    read id
    if [ ${book[$id]} ]; then
        echo "编号：$id，名称：${book[$id]%,*}，作者：${book[$id]#*,}，价格：${book[$id]##*,}"
    else
        echo "未找到该图书！"
    fi
}

# 编辑图书
function edit_book() {
    echo "请输入要编辑的图书编号："
    read id
    if [ ${book[$id]} ]; then
        echo "请输入新的图书名称："
        read name
        echo "请输入新的图书作者："
        read author
        echo "请输入新的图书价格："
        read price
        book[$id]=$name,author,$price
        echo "编辑成功！"
    else
        echo "未找到该图书！"
    fi
}

# 借阅图书
function borrow_book() {
    echo "请输入要借阅的图书编号："
    read id
    if [ ${book[$id]} ]; then
        echo "请输入借阅人姓名："
        read borrower
        book[$id]=${book[$id]},$borrower
        echo "借阅成功！"
    else
        echo "未找到该图书！"
    fi
}

# 归还图书
function return_book() {
    echo "请输入要归还的图书编号："
    read id
    if [ ${book[$id]} ]; then
        echo "请输入归还人姓名："
        read borrower
        if [[ ${book[$id]} == *$borrower* ]]; then
            book[$id]=${book[$id]/,$borrower/}
            echo "归还成功！"
        else
            echo "该图书未被借阅给该人！"
        fi
    else
        echo "未找到该图书！"
    fi
}

# 删除图书
function delete_book() {
    echo "请输入要删除的图书编号："
    read id
    if [ ${book[$id]} ]; then
        unset book[$id]
        echo "删除成功！"
    else
        echo "未找到该图书！"
    fi
}

# 主菜单
while true
do
    echo "欢迎使用图书管理系统！"
    echo "1.添加图书"
    echo "2.查找图书"
    echo "3.编辑图书"
    echo "4.借阅图书"
    echo "5.归还图书"
    echo "6.删除图书"
    echo "0.退出系统"
    read choice
    case $choice in
        1) add_book;;
        2) search_book;;
        3) edit_book;;
        4) borrow_book;;
        5) return_book;;
        6) delete_book;;
        0) exit;;
        *) echo "输入错误，请重新输入！";;
    esac
done