1.自动增添用户
[root@desktop mnt]# cat useradd.sh
#!/bin/bash
NUMUSERS=`wc -l /mnt/username |cut -d " " -f 1`
NUMPASSWD=`wc -l /mnt/passwd |cut -d " " -f 1`
if
[ "$NUMUSERS" = "0" -o "$NUMPASSWD" = "0" ]
then
echo 文件为空
else
if
[ "$NUMUSERS" = "$NUMPASSWD" ]
then
echo 有 $NUMUSERS 用户名
echo 有 $NUMPASSWD 密码
for NUM in $(seq 1 $NUMUSERS)
do
USERNAME=`sed -n ${NUM}p /mnt/username`
PASSWD=`sed -n ${NUM}p /mnt/passwd`
id $USERNAME &>/dev/null
if
[ "$?" != "0" ]
then
useradd $USERNAME
echo $PASSWD | passwd --stdin $USERNAME
else
echo $USERNAME 该用户存在
fi
done
else
read -p "你的用户名文件与密码文件不想等是否继续(y/n)" SURE
if
[ "$SURE" = "y" -a "$NUMUSERS" -lt "$NUMPASSWD" ]
then
NUM1=$(($NUMPASSWD-$NUMUSERS))
echo 密码文件多了 $NUM1 个
elif
[ "$SURE" = "y" -a "$NUMUSERS" -gt "$NUMPASSWD" ]
then
NUM2=$(($NUMUSERS-$NUMPASSWD))
echo 用户名文件多了 $NUM2 个
else
echo 你可以确定下文件是否有错
fi
fi
fi
2.ssh自动连接
[root@desktop mnt]# cat ask.sh
#!/bin/bash
read -p 'username:' USER
read -p 'ip' IP
read -p 'password:' -s PWD
ssh $USER@$IP
[root@desktop mnt]# cat answer.exp
#!/usr/bin/expect
set USER [ lindex $argv 0 ]
set PWD [ lindex $argv 1 ]
set IP [ lindex $argv 2 ]
spawn /mnt/ask.sh
expect {
"Are you sure" {send "yes\r"; exp_continue}
"username" {send "$USER\r"; exp_continue}
"password" {send "$PWD\r"; exp_continue}
"ip" {send "$IP\r"; exp_continue}
}
interact
3.ddns
[root@localhost mnt]# cat ddns.sh
#!/bin/bash
#前期准备############OKOKOK
systemctl start named &>/dev/null
if
[ "$?" = "0" ]
then
echo you have DNS service
else
echo i will install bind
yum install bind -y
systemctl start named &>/dev/null
echo service is ok
fi
systemctl start dhcpd &>/dev/null
if
[ "$?" = "0" ]
then
echo you have DHCP service
else
echo i will install DHCPD service
yum install dhcp -y
fi
#over
####用户信息提取######OKOKOK
read -p "yumingshi:" YUMING
read -p "加密文件：" NAME
read -p "请设置IP范围下限：" SMALL
read -p "请设置IP范围上限：" DIG
WANGDUAN=`ifconfig | sed -n 2p | cut -d " " -f 10|cut -d '.' -f 1-3`
IP=`ifconfig | sed -n 2p | cut -d " " -f 10`
NETMSK=`route | sed -n 3p | cut -d " " -f 14-15`
echo please input your client anything
dnssec-keygen -a HMAC-MD5 -b 128 -n HOST $NAME
MIMA=`cat /mnt/*.key | cut -d " " -f 7`
########################
cat >> /etc/named.rfc1912.zones << EOF
zone "$YUMING.com" IN {
type master;
file "$YUMING.com.zone";
allow-update { key $NAME; };
};
EOF
###########################
chmod 770 /var/named
touch /var/named/$YUMING.com.zone
#####################zone##########OKOKOKOK
cat >/var/named/ $YUMING.com.zone << EOF
$TTL 1D
@ IN SOA dns.$YUMING.com. root.$YUMING.com. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS dns.$YUMING.com.
dns A 172.25.254.124
www A 172.25.254.238
EOF
################################
##################################OKOKOK
cat >> /etc/named.conf <<EOF
key "$NAME" {
algorithm hmac-md5;
secret "$MIMA";
};
EOF
echo include "/etc/$NAME.key"; >> /etc/named.conf
#########################################
###pei zhi DHCP###############################OKOKOK
cat > /etc/dhcp/dhcpd.conf << EOF
option domain-name "$YUMING.com";
option domain-name-servers $IP;
default-lease-time 600;
max-lease-time 7200;
ddns-update-style interim;
subnet $WANGDUAN.0 netmask $NETMSK {
range ${WANGDUAN}.${SMALL} ${WANGDUAN}.${DIG};
option routers $WANGDUAN.254;
}
key $NAME {
algorithm hmac-md5;
secret "$MIMA";
};
zone $YUMING.com. {
primary 127.0.0.1;
key $NAME;
}
EOF
systemctl restart dhcp
##########################################
sed s/127.0.0.1/any/ /etc/named.conf -i
sed s/"loaclhost;"/"any;"/ /etc/named.conf -i
systemctl restart named
setsebool -P named_write_master_zone 1
4.数据库备份
[root@desktop mnt]# cat databaes.sh
#!/bin/bash
read -p "请输入登陆使用的用户名:" USERNAME
read -p "用户密码:" -s PWD
mysql -u$USERNAME -p$PWD -e "show databases;" &>/dev/null
if
[ "$?" = "0" ]
then
read -p "备份路径:(/xxx/xxx)" LJ
mysql -u$USERNAME -p$PWD -e "SHOW DATABASES;"
read -p "您想备份上述那个数据库:" NAMEDATA
read -p "您确定备份 $NAMEDATA数据库吗？:(y/n)" SUER
if
[ "$SUER" = "y" ]
then
mysqldump -u$USERNAME -p$PWD $NAMEDATA > $LJ/$NAMEDATA.sql
cat $NAMEDATA.sql &>/dev/null && echo 备份完毕 || echo 备份失败
else
echo 再见
fi
else
echo 您的用户名或密码出错请查正
fi
