成绩管理:
#!/bin/bash function information { echo "---------------------------" echo "图书馆管理系统(5.4版本)" echo echo -n "| " ;echo "1:添加图书" echo -n "| " ;echo "2:删除图书" echo -n "| " ;echo "3:图书列表" echo -n "| " ;echo "4:查找图书" echo -n "| " ;echo "5|q:退出系统" echo echo "---------------------------" read -p "请输入你的选择:" a case "$a" in 1) add ;; 2) delete ;; 3) list ;; 4) search;; 5|q|Q) return -1 ;; *) information ;; esac } function file_exist { if [ ! -f .book.txt ];then touch .book.txt fi } function add { read -p "请输入图书的编号:" number read -p "请输入图书的书名:" book_name read -p "请输入图书的作者:" author read -p "请输入图书的价格:" price echo -e "$number\t$book_name\t$author\t$price" >>.book.txt && { echo "添加图书成功!" echo "-------------------" } if [ $? -ne 0 ];then echo "添加图书失败" fi information } function delete { read -p "请输入要删除的图书的编号:" number grep $number .book.txt &>/dev/null && { sed -i '/\<'$number'\>/d' .book.txt &>/dev/null && echo "删除图书成功" echo "-------------------------" } if [ $? -ne 0 ];then echo "删除图书失败" echo "你要删除的图书不存在" fi information } #列出所有图书的信息 function list { echo -e "编号\t书名\t作者\t价格" cat .book.txt echo "----------------------------" information } #下面的函数用到的查询菜单 function search_menu { echo;echo "----------------------------" echo -n "|";echo -e "1:\t按图书编号查询" echo -n "|";echo -e "2:\t按图书书名查询" echo -n "|";echo -e "3:\t按图书作者查询" echo -n "|";echo -e "4:\t按图书价格查询" echo -n "|";echo -e "5|q:\t退出查询系统" echo;echo "----------------------------" } function search { search_menu read -p "请输出你的选择:" myselect case "$myselect" in 1) read -p "请输入要查询的图书的编号:" mynumber echo -e "编号\t书名\t作者\t价格\n" awk '$1=='$mynumber'{print $0}' .book.txt 2>/dev/null if [ $? -ne 0 ];then echo "图书不存在" fi search ;; 2) read -p "请输入你要查询的书名:" mybook_name echo -e "编号\t书名\t作者\t价格\n" awk '$2~/'$mybook_name'/{print $0}' .book.txt 2>/dev/null if [ $? -ne 0 ];then echo "图书不存在" fi search ;; 3) read -p "请输入图书的作者:" myauthor echo -e "编号\t书名\t作者\t价格\n" awk '$3~/'$myauthor'/{;print $0}' .book.txt 2>/dev/null if [ $? -ne 0 ];then echo "图书不存在" fi search ;; 4) read -p "请输入图书的价格:" myprice echo -e "编号\t书名\t作者\t价格\n" awk '$4=='$myprice'{print $0}' .book.txt 2>/dev/null if [ $? -ne 0 ];then echo "图书不存在" fi search ;; 5) information ;; *) information ;; esac } information
#! /bin/bash #查询函数 search() { clear echo -e "Please enter name >>>\c" read NAME #如果记录为空 if [ ! -f ./record ];then echo "you must have some scores before you can search!" sleep 2 clear return fi #没有输入名字进行查询 if [ -z "$NAME" ];then echo "you didn't enter a name!" echo -e "Please enter name >>>\c" read NAME fi grep -i "$NAME" ./record 2> /dev/null case "$?" in 1) echo "Name not in record." ;; 2) echo "you didnt eter a name to search"; sleep 2; search;; esac } #增加信息 add() { clear echo "Enter name and score of a record" echo -e "\c" if [ ! -f ./record ];then touch record fi read NEWNAME #关于输出重定向,>代表覆盖式的写入 ,>>代表添加式的写入 echo "$NEWNAME" >>./record sort -o ./record ./record } #删除学生信息 delete() { clear echo -e "Please enter delete name" read NAME if [ ! -f ./record ];then echo "this name is not in record" else cp record record.bak rm -f record grep -v "$NAME" ./record.bak > record rm -f record.bak fi } #显示所有的记录函数 display() { more ./record } #利用vim编辑器编辑函数 edit() { vim ./record } #屏幕帮助操作 help() { clear echo "this is a student record program by unix shell language!" } #推出程序 quit() { clear exit } clear while true do echo "*********************************************" echo "**** student record menu ****" echo "*********************************************" echo "---------------------------------------------" echo "#############################################" echo " 1-search a record " echo " 2-add a record " echo " 3-delete a record " echo " 4-dispaly all records " echo " 5-edit record with vim " echo " H-help " echo " Q-exit " echo "#############################################" echo -e -n "Please enter your choice [1,2,3,4,5,6,H,Q]:\c" read CHOICE case $CHOICE in 1) search;; 2) add; clear;; 3) delete; clear;; 4) display;; 5) edit; clear;; H|h) help;; Q|q) quit;; *) echo "Invailid choice!"; sleep 2; clear;; esac done