登录后自动切换用户

vi /etc/profile
if ! [ "$(whoami)" = "uname -n|awk -F . '{print $1}'" ] && ! [ "$(whoami)" = "root" ];then /bin/bash /usr/bin/changeid;fi

vi /usr/bin/changeid
#!/bin/bash
User=uname -n|awk -F . '{print $1}'
read -p "是否切换到项目共用账户：$User (y/n,默认:y):" IFU
if ! [ "$IFU" ];then IFU=y;fi
case $IFU in
    Y|y|YES|yes)
        clear
        ALL=ps -ef|grep changeid|grep -v grep|awk '{print $1}'|sort|uniq
        if [ "$ALL" ];then echo -e "当前已登录 $User 的账户有：\\n$ALL";fi
        /usr/bin/sudo /usr/bin/SubstituteUser - $User
        ;;
    *)
        echo "【切换已取消】，当前账户为：whoami"
        ;;
esac
md5-0388f8ad758e702e5f733944c2e347fc
vi /etc/sudoers
Cmnd_Alias SUCMD=/usr/bin/SubstituteUser - dev-php-1 #(切换的用户名)
ALL             ALL=(ALL)       NOPASSWD:SUCMD