#!/bin/bash

while :
do
    read -p  "请输入名字:" name
    if [ -f /tmp/test.log ];then
        name1=`cat /tmp/test.log | awk -F: '{print $1}' | grep "$name"`

        if [ "$name1" != "$name" ];then  #名字不重复情况下
                radomnum=`echo $RANDOM | awk -F "" '{print $2 $3}'`
                while :
                do
                        num=`cat  /tmp/test.log |  awk -F: '{print $2}'  | grep "$aa"`
                        if [ "$radomnum"  ==  "$num" ];then   #数字已经存在情况下
                        echo "该数字已存在!!!"
                        radomnum=`echo $RANDOM | awk -F "" '{print $2 $3}'`
                        else
                         break
                        fi
                done
                echo "$name:$radomnum" |tee -a /tmp/test.log
        else
                oldname=`cat /tmp/test.log |  grep "$name" | awk -F: '{print $2}'` #名字重复
                echo "重复名字: "  $oldname
        fi
        else
        a=`echo $RANDOM | awk -F "" '{print $2 $3}'`
        echo "$name:$a" |tee -a  /tmp/test.log
        fi
done