linux 批量创建远程用户

2015-09-07

#add_remote_user_bat.sh
#linux批量创建远程用户
#!/bin/bash
### AUTHOR: Joe
### DATE: 2015/07/12
### REV: 1.0


if [ ! -n "$1" ];then
   echo -e "Input the username you want grant login privilege to:c"
   read username
   pub_key=$(cat /data0/backup/authorized_keys_bak/$username'.pub')
   echo -e "Input the ip address $username want to login:c"
   read ipadd
   echo -e "Whether need root permissions? [yes|no]:c"
   read sudo
   ssh -n $ipadd '(chattr -i /etc/passwd /etc/group /etc/shadow /etc/sudoers)'
   FIND_USER=`ssh -n $ipadd "grep -c $username /etc/passwd"`
   if [ $FIND_USER -gt 0 ];then
      ssh -n $ipadd "userdel $username"
   fi
   #ssh -n $ipadd '(sed -i "/HOME/s/HOME=/home/HOME=/data/home/g" /etc/default/useradd)'
   #ssh -n $ipadd '(mkdir -p /data/home)'
   ssh -n $ipadd '(useradd '$username')'
   ssh -n $ipadd '(mkdir /home/'$username'/.ssh)'
   ssh -n $ipadd '(echo '$pub_key' > /home/'$username'/.ssh/authorized_keys)'
   ssh -n $ipadd '(chown -R '$username' /home/'$username'/.ssh)'
   ssh -n $ipadd '(chmod 700 /home/'$username'/.ssh;chmod 600 /home/'$username'/.ssh/authorized_keys)'
   if [ $sudo == yes ];then
   FIND_SUDO=`ssh -n $ipadd "grep -c $username /etc/sudoers"`
        if [ $FIND_SUDO -le 0 ];then
           ssh -n $ipadd "echo -e '$username	ALL=(ALL)	NOPASSWD: ALL' >>/etc/sudoers"
           echo "$ipadd sudo privilege has been granted to $username!"
        else
           echo "$username's sudo privilege already exist on $ipadd!"
        fi
   fi
   ssh -n $ipadd '(chattr +i /etc/passwd /etc/group /etc/shadow /etc/sudoers)'
   echo "$ipadd login privilege has been granted to $username!"
else
   echo -e "Input the username you want grant login privilege to:c"
   read username
   pub_key=$(cat /data0/backup/authorized_keys_bak/$username'.pub')
   echo -e "Whether need root permissions? [yes|no]:c"
   read sudo
   for ipadd in `cat $1`
   do
     ssh -n $ipadd '(chattr -i /etc/passwd /etc/group /etc/shadow /etc/sudoers)'
     FIND_USER=`ssh -n $ipadd "grep -c $username /etc/passwd"`
     if [ $FIND_USER -gt 0 ];then
        ssh -n $ipadd "userdel $username"
     fi
     ssh -n $ipadd '(useradd '$username')'
     ssh -n $ipadd '(mkdir /home/'$username'/.ssh)'
     ssh -n $ipadd '(echo '$pub_key' > /home/'$username'/.ssh/authorized_keys)'
     ssh -n $ipadd '(chown -R '$username' /home/'$username'/.ssh)'
     ssh -n $ipadd '(chmod 700 /home/'$username'/.ssh;chmod 600 /home/'$username'/.ssh/authorized_keys)'
     if [ $sudo == yes ];then
     FIND_SUDO=`ssh -n $ipadd "grep -c $username /etc/sudoers"`
        if [ $FIND_SUDO -le 0 ];then
           ssh -n $ipadd "echo -e '$username	ALL=(ALL)	NOPASSWD: ALL' >>/etc/sudoers"
           echo "$ipadd sudo privilege has been granted to $username!"
        else
           echo "$username's sudo privilege already exist on $ipadd!"
        fi
     fi
     ssh -n $ipadd '(chattr +i /etc/passwd /etc/group /etc/shadow /etc/sudoers)'
     echo "$ipadd login privilege has been granted to $username!"
   done
fi