liunx 创建远程用户帐号

#add_remote_user.sh
#liunx创建远程用户帐号
#!/bin/bash
### AUTHOR: Joe
### DATE: 2015/08/05
### REV: 1.0
if [ ! -n "$1" ];then
echo -e "Input the username you want grant login privilege to:\c"
read username
pub_key=$(cat /data/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 -r  $username"
fi
ssh -n $ipadd '(useradd '$username')'
ssh -n $ipadd '(mkdir /data/home/'$username'/.ssh)'
ssh -n $ipadd '(echo '$pub_key' > /data/home/'$username'/.ssh/authorized_keys)'
ssh -n $ipadd '(chown -R '$username' /data/home/'$username'/.ssh)'
ssh -n $ipadd '(chmod 700 /data/home/'$username'/.ssh;chmod 600 /data/home/'$username'/.ssh/authorized_keys)'
if [ $sudo == yes ];then
ssh -n $ipadd "echo -e '$username\tALL=(ALL)\tNOPASSWD: ALL' >>/etc/sudoers"
fi
ssh -n $ipadd '(chattr +i /etc/passwd /etc/group /etc/shadow /etc/sudoers)'
ssh -n $ipadd '(useradd '$username')'
ssh -n $ipadd '(mkdir /data/home/'$username'/.ssh)'
ssh -n $ipadd '(echo '$pub_key' > /data/home/'$username'/.ssh/authorized_keys)'
ssh -n $ipadd '(chown -R '$username' /data/home/'$username'/.ssh)'
ssh -n $ipadd '(chmod 700 /data/home/'$username'/.ssh;chmod 600 /data/home/'$username'/.ssh/authorized_keys)'
if [ $sudo == yes ];then
ssh -n $ipadd "echo -e '$username\tALL=(ALL)\tNOPASSWD: ALL' >>/etc/sudoers"
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 /data/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 $ipadd '(mkdir /data/home/'$username'/.ssh)'
ssh -n $ipadd '(echo '$pub_key' > /data/home/'$username'/.ssh/authorized_keys)'
ssh -n $ipadd '(chown -R '$username' /data/home/'$username'/.ssh)'
ssh -n $ipadd '(chmod 700 /data/home/'$username'/.ssh;chmod 600 /data/home/'$username'/.ssh/authorized_keys)'
if [ $sudo == yes ];then
ssh -n $ipadd "echo -e '$username\tALL=(ALL)\tNOPASSWD: ALL' >>/etc/sudoers"
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