第七部分
1、每隔3秒钟到系统上获取已经登录的用户信息；如果发现用户hacker登录，则将登录时间和主机记录于日志/var/log/login.log中，并退出脚本
[root@centos8 ~]# vim until_hacker.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-14
#FileName： until_hacker.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
until false;do
if who |grep "^hacker\>"&>/dev/null;then
who|grep "^hacker\>">/var/log/login.log
break
fi
sleep 3
done
[root@centos8 ~]# useradd hacker
[root@centos8 ~]# echo 123456 |passwd --stdin hacker
Changing password for user hacker.
passwd: all authentication tokens updated successfully.
[root@centos7 ~]# ssh hacker@10.0.0.8
The authenticity of host '10.0.0.8 (10.0.0.8)' can't be established.
ECDSA key fingerprint is SHA256:fUCdE0Lsxgab+roZ/EFe+btNS2VNOZYabFbNk7JfS98.
ECDSA key fingerprint is MD5:49:ed:65:c6:e9:74:3a:a3:1b:8f:0f:e5:57:8d:87:26.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.8' (ECDSA) to the list of known hosts.
hacker@10.0.0.8's password:
[hacker@centos8 ~]$
[root@centos8 ~]# cat /var/log/login.log
hacker pts/2 2020-12-14 20:11 (10.0.0.7)
2、随机生成10以内的数字，实现猜字游戏，提示比较大或小，相等则退出
[root@centos8 ~]# vim guess.sh
#Date: 2020-12-14
#FileName： guess.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
NUM=$[RANDOM%10]
while read -p "输入0-9之间的数字: " input ;do
if grep '^[[:digit:]]*$' <<< "$input" ;then
if [ $input -eq $NUM ];then
echo "恭喜你猜对了！"
break
elif [ $input -gt $NUM ];then
echo "数字太大，重新猜！"
else
echo "数字太小，重新猜！"
fi
else
echo "请输入数字"
fi
done
[root@centos8 ~]# bash guess.sh
输入0-9之间的数字: 5
5
数字太小，重新猜！
输入0-9之间的数字: 6
6
数字太小，重新猜！
数字太小，重新猜！
输入0-9之间的数字: 9
9
数字太大，重新猜！
输入0-9之间的数字: 8
8
恭喜你猜对了！
3、用文件名做为参数，统计所有参数文件的总行数
[root@centos8 ~]# vim until_file.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-14
#FileName： until_file.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
if [ $# -eq 0 ];then
echo "Please input file path"
else
until [ -z "$1" ];do
echo "统计文件: $1"
echo "文件总行数: `wc -l $1|cut -d " " -f1`"
echo
shift
done
echo "finish"
fi
[root@centos8 ~]# bash until_file.sh
Please input file path
[root@centos8 ~]# bash until_file.sh /etc/init.d/functions
统计文件: /etc/init.d/functions
文件总行数: 709
finish
[root@centos8 ~]# bash until_file.sh /etc/issue /etc/fstab /etc/yum.repos.d/base.repo
统计文件: /etc/issue
文件总行数: 3
统计文件: /etc/fstab
文件总行数: 15
统计文件: /etc/yum.repos.d/base.repo
文件总行数: 53
finish
4、用二个以上的数字为参数，显示其中的最大值和最小值
[root@centos8 ~]# vim while_maxmin.sh
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-14
#FileName： while_maxmin.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
max=$1
min=$1
while [ $# -gt 0 ];do
if [ $1 -lt $min ];then
min=$1
fi
if [ $1 -gt $max ];then
max=$1
fi
shift
done
echo "maxnum is $max"
echo "minnum is $min"
[root@centos8 ~]# bash while_maxmin.sh 10 9
maxnum is 10
minnum is 9
第八部分
1、编写函数，实现OS的版本判断
[root@centos8 ~]# vim os_version.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2021-01-04
#FileName： os_version.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2021 All rights reserved
#********************************************************************
os_version(){
cat /etc/redhat-release 2> /dev/null || awk -F'"' '/PRETTY_NAME=/{print $2}' /etc/os-release
}
os_version
:wq
[root@centos8-4 ~]# bash os_version.sh
CentOS Linux release 8.3.2011
root@ubuntu2004:~# bash os_version.sh
Ubuntu 20.04.1 LTS
root@ubuntu1804:~# vim os_version2.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2021-01-04
#FileName： os_version2.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2021 All rights reserved
#********************************************************************
os_version(){
sed -rn 's#^.* ([0-9]+)\..*#\1#p' /etc/redhat-release 2> /dev/null || awk -F'=|"|[.]' '/VERSION=/{print $3}' /etc/os-release
}
os_version
:wq
root@ubuntu1804:~# bash os_version2.sh
20
[root@centos8-4 ~]# bash os_version2.sh
8
2、编写函数，实现取出当前系统eth0的IP地址
[root@centos8 ~]# vim eth0_ip.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： eth0_ip.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
get_ip(){
ip addr |sed -rn '/global/s#(.*inet )([0-9].*)(/.*)#\2#p'
}
get_ip
:wq
[root@centos8 ~]# bash eth0_ip.sh
10.0.0.8
3、编写函数，实现打印绿色OK和红色FAILED
[root@centos8 ~]# vim ok_failed.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： ok_failed.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
. /etc/init.d/functions
action "success!" true
action "failed!" false
[root@centos8 ~]# bash ok_failed.sh
success! [ OK ]
failed! [FAILED]
4、编写函数，实现判断是否无位置参数，如无参数，提示错误
[root@centos8 ~]# vim parameter.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： parameter.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
args () {
if [ $# -eq 0 ];then
. /etc/init.d/functions
action "fail...you must input a parameter" false
fi
}
args $1
[root@centos8 ~]# bash parameter.sh
fail...you must input a parameter [FAILED]
[root@centos8 ~]# bash parameter.sh 0
5、编写函数，实现两个数字做为参数，返回最大值
[root@centos8 ~]# vim return_max.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： return_max.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
return_max(){
until [ $# -eq 0 ];do
if [ $1 -lt $2 ] ;then
echo "$2"
break
else
echo "$1"
break
fi
done
}
return_max $1 $2
:wq
[root@centos8 ~]# bash return_max.sh
[root@centos8 ~]# bash return_max.sh 10 6
10
[root@centos8 ~]# bash return_max.sh 100 94
100
6、编写服务脚本/root/bin/testsrv.sh，完成如下要求
（1）脚本可接受参数：start，stop，restart，status
（2）如果参数非此四者之一，提示使用格式后报错退出
（3）如果start：则创建/var/lock/subsys/SCRIPT_NAME，并显示“启动成功”
考虑：如果事先已经启动过一次，该如何处理？
（4）如果stop：则删除/var/lock/subsys/SCRIPT_NAME，并显示“停止完成”
考虑：如果事先已经停止过了，该如何处理？
（5）如果restart，则先stop，再start
考虑：如果本来没有start，该如何处理？
（6）如果status，则如果/var/lock/subsys/SCRIPT_NAME文件存在，则显示“SCRIPT_NAME is running...”，如果/var/lock/subsys/SCRIPT_NAME文件不存在，则显示“SCRIPT_NAME is stopped...”
（7）在所有模式下禁止启动该服务，可用chkconfig和service命令管理
说明：SCRIPT_NAME为当前脚本名
[root@centos8 ~]# cat /root/bin/testsrv.sh
#!/bin/bash
#chkconfig: - 96 3
#description: the service script
. /etc/init.d/functions
start(){
touch /var/lock/subsys/testsrv
action "Starting testsrv"
sleep 3
}
stop(){
rm -f /var/lock/subsys/testsrv
action "Shutting down testsrv"
}
restart(){
stop
start
}
status(){
if [ -e /var/lock/subsys/testsrv ];then
echo "testsrv is runing..."
else
echo "testsrv is stopped"
fi
}
case $1 in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
status)
status
;;
*)
echo "Usage: /etc/init.d/testsrv {start|stop|restart|status}"
;;
esac
7、编写脚本/root/bin/copycmd.sh
（1）提示用户输入一个可执行命令名称
（2）获取此命令所依赖到的所有库文件列表
（3）赋值命令至某目标目录（例如/mnt/sysroot）下的对应路径下
如：/bin/bash ==> /mnt/sysroot/bin/bash
/usr/bin/passwd ==> /mnt/sysroot/usr/bin/passwd
（4）复制此命令依赖到的所有库文件至目标目录下的对应路径下： 如：/lib64/ld-linux-x86-64.so.2 ==> /mnt/sysroot/lib64/ld-linux-x86-64.so.2
（5）每次复制完成一个命令后，不要退出，而是提示用户键入新的要复制的命令，并重复完成上述功能；直到用户输入 quit退出
[root@centos8 ~]# vim copycmd.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： copycmd.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
read -p "please input a excute cmd(eg:cat|bash|quit):" command
[ -a /mnt/sysroot ]||mkdir /mnt/sysroot &>/dev/null
cpdir () {
cmd=`which --skip-alias $command`
if [ -f /mnt/sysroot$cmd ];then
echo "the $cmd has been cp before"
else
local dir=`dirname $cmd`
mkdir -p /mnt/sysroot$dir
cp $cmd /mnt/sysroot$cmd
echo "cp $cmd finished"
fi
}
cplib () {
cmd=`which --skip-alias $command`
ldd $cmd |egrep -o "/lib64.* "|while read i;do
if [ ! -f /mnt/sysroot$i ];then
local dir=`dirname $i`
mkdir -p /mnt/sysroot$dir
cp $i /mnt/sysroot$i
echo "cp $i finished"
else
echo "$i has been cp before"
fi
done
}
type $command&>/dev/null||{ echo the command is not exsit;exit 100; }
until [ $command == quit ];do
type $command&>/dev/null||{ echo the command is not exsit;exit 100; }
cpdir
cplib
read -p "please input new excute cmd(eg:cat|bash|quit):" command
cmd=`which --skip-alias $command`
done
:wq
[root@centos8 ~]# bash copycmd.sh
please input a excute cmd(eg:cat|bash|quit):ls
cp /usr/bin/ls finished
cp /lib64/libselinux.so.1 finished
cp /lib64/libcap.so.2 finished
cp /lib64/libc.so.6 finished
cp /lib64/libpcre2-8.so.0 finished
cp /lib64/libdl.so.2 finished
cp /lib64/ld-linux-x86-64.so.2 finished
cp /lib64/libpthread.so.0 finished
please input new excute cmd(eg:cat|bash|quit):cd
cp /usr/bin/cd finished
please input new excute cmd(eg:cat|bash|quit):pwd
cp /usr/bin/pwd finished
/lib64/libc.so.6 has been cp before
/lib64/ld-linux-x86-64.so.2 has been cp before
please input new excute cmd(eg:cat|bash|quit):rm
cp /usr/bin/rm finished
/lib64/libc.so.6 has been cp before
/lib64/ld-linux-x86-64.so.2 has been cp before
please input new excute cmd(eg:cat|bash|quit):quit
which: no quit in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin)
[root@centos8 ~]# tree /mnt/sysroot/
/mnt/sysroot/
├── lib64
│ ├── ld-linux-x86-64.so.2
│ ├── libcap.so.2
│ ├── libc.so.6
│ ├── libdl.so.2
│ ├── libpcre2-8.so.0
│ ├── libpthread.so.0
│ └── libselinux.so.1
└── usr
└── bin
├── cd
├── ls
├── pwd
└── rm
3 directories, 11 files
8、裴波那契数列又称黄金分割数列，因数学家列昂纳多·裴波那契以兔子繁殖为例子而引入，故又称为“兔子数列”，指的是这样一个数列：0、1、1、2、3、5、8、13、21、34、...，裴波那契数列以如下被以递归的方法定义：F (0) =0，F (1) =1，F (n) =F(n-1)+F(n-2) (n≥2)，利用函数，求n阶裴波那契数列
[root@centos8 ~]# vim fibonacci.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： fibonacci.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
fibonacci(){
tmp=$1
if [ $tmp -le 2 ];then
echo 1
else
F1=`fibonacci $[tmp-1]`
F2=`fibonacci $[tmp-2]`
echo $[F1+F2]
fi
}
fibonacci $1
[root@centos8 ~]# bash fibonacci.sh 10
55
[root@centos8 ~]# bash fibonacci.sh 15
610
9、汉诺塔（又称河内塔）问题是源于印度一个古老传说。大梵天创造世界的时候做了三根金刚石柱子，在一根柱子上从下往上按照大小顺序摞着64片黄金圆盘。大梵天命令婆罗门把圆盘从下面开始按大小顺序重新摆放在另一根柱子上。并且规定，在小圆盘上不能放大圆盘，在三根柱子之间一次只能移动一个圆盘，利用函数，实现N片盘的汉诺塔的移动步骤
[root@centos8 ~]# cat hanoi.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： hanoi.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
hanoi(){
local tmp=$1
if [ $tmp -eq 1 ] ;then
let i++
echo "step:$i move $2--->$4" #move A to C
else
hanoi $[$1-1] $2 $4 $3 # move the n-1 plate to B
let i++
echo "step:$i move $2--->$4" #move the bigest plate to C
hanoi $[$1-1] $3 $2 $4 #move the n-1 plate to C
fi
}
trap 'echo Ctrl+C is not work ,Please type q or quit to exit' 2
while : ;do
read -p "please input a number:" tmp
declare -i i=0
if [[ $tmp =~ ^[Qq]([Uu][Ii][Tt])?$ ]] ;then
break
elif [[ $tmp =~ ^[0-9]+$ ]] ;then
hanoi $tmp A B C
else
echo "Error:please input a positive number!"
fi
unset tmp
done
:wq
[root@centos8 ~]# bash hanoi.sh
please input a number:5
step:1 move A--->C
step:2 move A--->B
step:3 move C--->B
step:4 move A--->C
step:5 move B--->A
step:6 move B--->C
step:7 move A--->C
step:8 move A--->B
step:9 move C--->B
step:10 move C--->A
step:11 move B--->A
step:12 move C--->B
step:13 move A--->C
step:14 move A--->B
step:15 move C--->B
step:16 move A--->C
step:17 move B--->A
step:18 move B--->C
step:19 move A--->C
step:20 move B--->A
step:21 move C--->B
step:22 move C--->A
step:23 move B--->A
step:24 move B--->C
step:25 move A--->C
step:26 move A--->B
step:27 move C--->B
step:28 move A--->C
step:29 move B--->A
step:30 move B--->C
step:31 move A--->C
please input a number:q
第九部分
1、输入若干个数值存入数组中，采用冒泡算法进行升序或降序排序
#升序排序
root@ubuntu2004:~# vim maopao.sh
if [ $L == 0 ];then
echo 没有数字。
elif [ $L == 1 ];then
echo 只有一个数字，无需排序。
else
for i in `seq $[L-1]`;do
for j in `seq $i $[L-1]`;do
MIN=${NUMS[$i-1]}
if [ $MIN -gt ${NUMS[$j]} ];then
NUMS[$i-1]=${NUMS[$j]}
NUMS[$j]=$MIN
fi
done
done
echo 从小到大排序：${NUMS[*]}
break
fi
elif [[ $N =~ ^[0-9]+$ ]];then
NUMS[$i]=$N
echo 已输入数字：${NUMS[*]}
echo 个数： ${#NUMS[*]}
let i++
else
echo "您输入的不是数字，请重新输入。"
continue
fi
done
:wq
root@ubuntu2004:~# bash maopao.sh
请输入一个数字（ e 结束输入，q 退出程序 ）：11
已输入数字：11
个数： 1
请输入一个数字（ e 结束输入，q 退出程序 ）：587
已输入数字：11 587
个数： 2
请输入一个数字（ e 结束输入，q 退出程序 ）：674
已输入数字：11 587 674
个数： 3
请输入一个数字（ e 结束输入，q 退出程序 ）：2223
已输入数字：11 587 674 2223
个数： 4
请输入一个数字（ e 结束输入，q 退出程序 ）：1568
已输入数字：11 587 674 2223 1568
个数： 5
请输入一个数字（ e 结束输入，q 退出程序 ）：489413
已输入数字：11 587 674 2223 1568 489413
个数： 6
请输入一个数字（ e 结束输入，q 退出程序 ）：e
从小到大排序：11 587 674 1568 2223 489413
#降序排序
root@ubuntu2004:~# vim maopao2.sh
if [ $L == 0 ];then
echo 没有数字。
elif [ $L == 1 ];then
echo 只有一个数字，无需排序。
else
for i in `seq $[L-1]`;do
for j in `seq $i $[L-1]`;do
MAX=${NUMS[$i-1]}
if [ $MAX -lt ${NUMS[$j]} ];then
NUMS[$i-1]=${NUMS[$j]}
NUMS[$j]=$MAX
fi
done
done
echo 从大到小排序：${NUMS[*]}
break
fi
elif [[ $N =~ ^[0-9]+$ ]];then
NUMS[$i]=$N
echo 已输入数字：${NUMS[*]}
echo 个数： ${#NUMS[*]}
let i++
else
echo "您输入的不是数字，请重新输入。"
continue
fi
done
:wq
root@ubuntu2004:~# bash maopao2.sh
请输入一个数字（ e 结束输入，q 退出程序 ）：55
已输入数字：55
个数： 1
请输入一个数字（ e 结束输入，q 退出程序 ）：86
已输入数字：55 86
个数： 2
请输入一个数字（ e 结束输入，q 退出程序 ）：77896
已输入数字：55 86 77896
个数： 3
请输入一个数字（ e 结束输入，q 退出程序 ）：1548
已输入数字：55 86 77896 1548
个数： 4
请输入一个数字（ e 结束输入，q 退出程序 ）：1848
已输入数字：55 86 77896 1548 1848
个数： 5
请输入一个数字（ e 结束输入，q 退出程序 ）：e
从大到小排序：77896 1848 1548 86 55
2、将下图所示，实现转置矩阵matrix.sh
1 2 3 1 4 7
4 5 6 ==> 2 5 8
7 8 9 3 6 9
root@ubuntu2004:~# vim matrix.sh
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： matrix.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
declare -a matrix
echo 原始：
for i in `seq 3`
do
for j in `seq 3`
do
matrix[$i$j]=$[3*(i-1)+j]
echo -n ${matrix[$i$j]} ''
done
echo
done
echo -e "\n转换："
for i in `seq 3`
do
for j in `seq $i`
do
x=${matrix[$i$j]}
matrix[$i$j]=${matrix[$j$i]}
matrix[$j$i]=$x
done
done
for i in `seq 3`
do
for j in `seq 3`
do
echo -n ${matrix[$i$j]} ''
done
echo
done
:wq
root@ubuntu2004:~# bash matrix.sh
原始：
1 2 3
4 5 6
7 8 9
转换：
1 4 7
2 5 8
3 6 9
3、打印杨辉三角形
root@ubuntu2004:~# cat yanghui.sh
#!/bin/bash
#
#********************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2020-12-16
#FileName： yanghui.sh
#URL: www.neteagles.cn
#Description： The test script
#Copyright (C): 2020 All rights reserved
#********************************************************************
yanghui(){
tmp=$1
i=0
while [ $i -ne `expr $tmp + 1` ];do
if [ $i -eq $tmp ]||[ $i -eq 0 ];then
echo -n 1
else
echo -n $(expr $2 + $3)
shift
fi
echo -n " "
i=`expr $i + 1`
done
}
if [ $# -ne 1 ];then
read -p "enter the Max number:" COUNT
else
COUNT=$1
fi
i=0
while [ $i -ne $COUNT ];do
tmp=(`yanghui $i ${tmp[*]}`)
echo ${tmp[*]}
i=`expr $i + 1`
done
:wq
root@ubuntu2004:~# bash yanghui.sh
enter the Max number:5
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
root@ubuntu2004:~# bash yanghui.sh
enter the Max number:10
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
1 8 28 56 70 56 28 8 1
1 9 36 84 126 126 84 36 9 1
第十部分
[root@centos8 ~]# cat reset_v4.sh
#!/bin/bash
#
#******************************************************************************
#Author: zhanghui
#QQ: 19661891
#Date: 2021-09-05
#FileName: reset_v4.sh
#URL: www.cnblogs.com/neteagles
#Description: reset for centos 6/7/8 & ubuntu 18.04/20.04
#Copyright (C): 2021 All rights reserved
#******************************************************************************
COLOR="echo -e \\033[01;31m"
END='\033[0m'
os(){
if grep -Eqi "CentOS" /etc/issue || grep -Eq "CentOS" /etc/*-release;then
rpm -q redhat-lsb-core &> /dev/null || { ${COLOR}"安装lsb_release工具"${END};yum -y install redhat-lsb-core &> /dev/null; }
fi
OS_ID=`lsb_release -is`
OS_RELEASE=`lsb_release -rs`
OS_RELEASE_VERSION=`lsb_release -rs |awk -F'.' '{print $1}'`
OS_CODENAME=`lsb_release -cs`
}
disable_selinux(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
if [ `getenforce` == "Enforcing" ];then
sed -ri.bak 's/^(SELINUX=).*/\1disabled/' /etc/selinux/config
${COLOR}"${OS_ID} ${OS_RELEASE} SELinux已禁用,请重新启动系统后才能生效!"${END}
else
${COLOR}"${OS_ID} ${OS_RELEASE} SELinux已被禁用，不用设置!"${END}
fi
else
${COLOR}"${OS_ID} ${OS_RELEASE} SELinux默认没有安装,不用设置!"${END}
fi
}
disable_firewall(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
rpm -q firewalld &> /dev/null && { systemctl disable --now firewalld &> /dev/null; ${COLOR}"${OS_ID} ${OS_RELEASE} Firewall防火墙已关闭!"${END}; } || ${COLOR}"${OS_ID} ${OS_RELEASE} 没有firewall防火墙服务,不用关闭！"${END}
else
dpkg -s ufw &> /dev/null && { systemctl disable --now ufw &> /dev/null; ${COLOR}"${OS_ID} ${OS_RELEASE} ufw防火墙已关闭!"${END}; } || ${COLOR}"${OS_ID} ${OS_RELEASE} 没有ufw防火墙服务,不用关闭！"${END}
fi
}
optimization_sshd(){
sed -i.bak -e 's/#UseDNS no/UseDNS no/' -e 's/GSSAPIAuthentication yes/GSSAPIAuthentication no/' /etc/ssh/sshd_config
if [ ${OS_RELEASE_VERSION} == "6" ] &> /dev/null;then
service sshd restart
else
systemctl restart sshd
fi
${COLOR}"${OS_ID} ${OS_RELEASE} SSH已优化完成!"${END}
}
set_centos_alias(){
cat >>~/.bashrc <<-EOF
alias cdnet="cd /etc/sysconfig/network-scripts"
alias vie0="vim /etc/sysconfig/network-scripts/ifcfg-eth0"
alias vie1="vim /etc/sysconfig/network-scripts/ifcfg-eth1"
alias scandisk="echo '- - -' > /sys/class/scsi_host/host0/scan;echo '- - -' > /sys/class/scsi_host/host1/scan;echo '- - -' > /sys/class/scsi_host/host2/scan"
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} 系统别名已设置成功,请重新登陆后生效!"${END}
}
set_ubuntu_alias(){
cat >>~/.bashrc <<-EOF
alias cdnet="cd /etc/netplan"
alias scandisk="echo '- - -' > /sys/class/scsi_host/host0/scan;echo '- - -' > /sys/class/scsi_host/host1/scan;echo '- - -' > /sys/class/scsi_host/host2/scan"
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} 系统别名已设置成功,请重新登陆后生效!"${END}
}
set_alias(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
set_centos_alias
else
set_ubuntu_alias
fi
}
set_vimrc(){
read -p "请输入作者名:" AUTHOR
read -p "请输入QQ号:" QQ
read -p "请输入网址:" V_URL
cat >~/.vimrc <<-EOF
set ts=4
set expandtab
set ignorecase
set cursorline
set autoindent
autocmd BufNewFile *.sh exec ":call SetTitle()"
func SetTitle()
if expand("%:e") == 'sh'
call setline(1,"#!/bin/bash")
call setline(2,"#")
call setline(3,"#**********************************************************************************************")
call setline(4,"#Author: ${AUTHOR}")
call setline(5,"#QQ: ${QQ}")
call setline(6,"#Date: ".strftime("%Y-%m-%d"))
call setline(7,"#FileName: ".expand("%"))
call setline(8,"#URL: ${V_URL}")
call setline(9,"#Description: The test script")
call setline(10,"#Copyright (C): ".strftime("%Y")." All rights reserved")
call setline(11,"#*********************************************************************************************")
call setline(12,"")
endif
endfunc
autocmd BufNewFile * normal G
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} vimrc设置完成,请重新系统启动才能生效!"${END}
}
aliyun(){
URL=mirrors.aliyun.com
}
huawei(){
URL=repo.huaweicloud.com
}
tencent(){
URL=mirrors.cloud.tencent.com
}
tuna(){
URL=mirrors.tuna.tsinghua.edu.cn
}
netease(){
URL=mirrors.163.com
}
sohu(){
URL=mirrors.sohu.com
}
fedora(){
URL=archives.fedoraproject.org
}
set_yum_centos8(){
[ -d /etc/yum.repos.d/backup ] || mkdir /etc/yum.repos.d/backup
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/backup
cat > /etc/yum.repos.d/base.repo <<-EOF
[BaseOS]
name=BaseOS
baseurl=https://${URL}/centos/\$releasever/BaseOS/\$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[AppStream]
name=AppStream
baseurl=https://${URL}/centos/\$releasever/AppStream/\$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[extras]
name=extras
baseurl=https://${URL}/centos/\$releasever/extras/\$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
enabled=1
[centosplus]
name=centosplus
baseurl=https://${URL}/centos/\$releasever/centosplus/\$basearch/os/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[PowerTools]
name=PowerTools
baseurl=https://${URL}/centos/8/PowerTools/x86_64/os/
gpgcheck=1
etpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
EOF
dnf clean all &> /dev/null
dnf repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} YUM源设置完成!"${END}
}
set_epel_centos8(){
cat > /etc/yum.repos.d/epel.repo <<-EOF
[EPEL]
name=EPEL
baseurl=https://${URL}/epel/\$releasever/Everything/\$basearch/
gpgcheck=1
gpgkey=https://${URL}/epel/RPM-GPG-KEY-EPEL-\$releasever
EOF
dnf clean all &> /dev/null
dnf repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} EPEL源设置完成!"${END}
}
set_epel_2_centos8(){
cat > /etc/yum.repos.d/epel.repo <<-EOF
[EPEL]
name=EPEL
baseurl=https://${URL}/fedora-epel/\$releasever/Everything/\$basearch/
gpgcheck=1
gpgkey=https://${URL}/fedora-epel/RPM-GPG-KEY-EPEL-\$releasever
EOF
dnf clean all &> /dev/null
dnf repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} EPEL源设置完成!"${END}
}
set_yum_centos7(){
[ -d /etc/yum.repos.d/backup ] || mkdir /etc/yum.repos.d/backup
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/backup
cat > /etc/yum.repos.d/base.repo <<-EOF
[base]
name=base
baseurl=https://${URL}/centos/\$releasever/os/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[extras]
name=extras
baseurl=https://${URL}/centos/\$releasever/extras/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[updates]
name=updates
baseurl=https://${URL}/centos/\$releasever/updates/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[centosplus]
name=centosplus
baseurl=https://${URL}/centos/\$releasever/centosplus/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} YUM源设置完成!"${END}
}
set_epel_centos7(){
cat > /etc/yum.repos.d/epel.repo <<-EOF
[epel]
name=epel
baseurl=https://${URL}/epel/\$releasever/\$basearch/
gpgcheck=1
gpgkey=https://${URL}/epel/RPM-GPG-KEY-EPEL-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} EPEL源设置完成!"${END}
}
set_epel_2_centos7(){
cat > /etc/yum.repos.d/epel.repo <<-EOF
[epel]
name=epel
baseurl=https://${URL}/fedora-epel/\$releasever/\$basearch/
gpgcheck=1
gpgkey=https://${URL}/fedora-epel/RPM-GPG-KEY-EPEL-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} EPEL源设置完成!"${END}
}
set_yum_centos6(){
[ -d /etc/yum.repos.d/backup ] || mkdir /etc/yum.repos.d/backup
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/backup
cat > /etc/yum.repos.d/base.repo <<-EOF
[base]
name=base
baseurl=https://${URL}/centos/\$releasever/os/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[extras]
name=extras
baseurl=https://${URL}/centos/\$releasever/extras/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[updates]
name=updates
baseurl=https://${URL}/centos/\$releasever/updates/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[centosplus]
name=centosplus
baseurl=https://${URL}/centos/\$releasever/centosplus/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} YUM源设置完成!"${END}
}
set_yum_2_centos6(){
[ -d /etc/yum.repos.d/backup ] || mkdir /etc/yum.repos.d/backup
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/backup
cat > /etc/yum.repos.d/base.repo <<-EOF
[base]
name=base
baseurl=https://${URL}/centos-vault/\$releasever.10/os/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[extras]
name=extras
baseurl=https://${URL}/centos-vault/\$releasever.10/extras/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[updates]
name=updates
baseurl=https://${URL}/centos-vault/\$releasever.10/updates/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
[centosplus]
name=centosplus
baseurl=https://${URL}/centos-vault/\$releasever.10/centosplus/\$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} YUM源设置完成!"${END}
}
set_epel_centos6(){
cat > /etc/yum.repos.d/epel.repo <<-EOF
[epel]
name=epel
baseurl=https://${URL}/epel/\$releasever/\$basearch/
gpgcheck=1
gpgkey=https://${URL}/epel/RPM-GPG-KEY-EPEL-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} EPEL源设置完成!"${END}
}
set_epel_2_centos6(){
cat > /etc/yum.repos.d/epel.repo <<-EOF
[epel]
name=epel
baseurl=https://${URL}/pub/archive/epel/\$releasever/\$basearch/
gpgcheck=1
gpgkey=https://$(tencent)/epel/RPM-GPG-KEY-EPEL-\$releasever
EOF
yum clean all &> /dev/null
yum repolist &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} EPEL源设置完成!"${END}
}
centos8_base_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)阿里镜像源
2)华为镜像源
3)腾讯镜像源
4)清华镜像源
5)网易镜像源
6)搜狐镜像源
7)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-7)" NUM
case ${NUM} in
1)
aliyun
set_yum_centos8
;;
2)
huawei
set_yum_centos8
;;
3)
tencent
set_yum_centos8
;;
4)
tuna
set_yum_centos8
;;
5)
netease
set_yum_centos8
;;
6)
sohu
set_yum_centos8
;;
7)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-7)!"${END}
;;
esac
done
}
centos7_base_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)阿里镜像源
2)华为镜像源
3)腾讯镜像源
4)清华镜像源
5)网易镜像源
6)搜狐镜像源
7)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-7)" NUM
case ${NUM} in
1)
aliyun
set_yum_centos7
;;
2)
huawei
set_yum_centos7
;;
3)
tencent
set_yum_centos7
;;
4)
tuna
set_yum_centos7
;;
5)
netease
set_yum_centos7
;;
6)
sohu
set_yum_centos7
;;
7)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-7)!"${END}
;;
esac
done
}
centos6_base_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)腾讯镜像源
2)搜狐镜像源
3)阿里镜像源
4)清华镜像源
5)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-5)" NUM
case ${NUM} in
1)
tencent
set_yum_centos6
;;
2)
sohu
set_yum_centos6
;;
3)
aliyun
set_yum_2_centos6
;;
4)
tuna
set_yum_2_centos6
;;
5)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-5)!"${END}
;;
esac
done
}
centos8_epel_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)阿里镜像源
2)华为镜像源
3)腾讯镜像源
4)清华镜像源
5)搜狐镜像源
6)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-6)" NUM
case ${NUM} in
1)
aliyun
set_epel_centos8
;;
2)
huawei
set_epel_centos8
;;
3)
tencent
set_epel_centos8
;;
4)
tuna
set_epel_centos8
;;
5)
sohu
set_epel_2_centos8
;;
6)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-6)!"${END}
;;
esac
done
}
centos7_epel_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)阿里镜像源
2)华为镜像源
3)腾讯镜像源
4)清华镜像源
5)搜狐镜像源
6)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-6)" NUM
case ${NUM} in
1)
aliyun
set_epel_centos7
;;
2)
huawei
set_epel_centos7
;;
3)
tencent
set_epel_centos7
;;
4)
tuna
set_epel_centos7
;;
5)
sohu
set_epel_2_centos7
;;
6)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-6)!"${END}
;;
esac
done
}
centos6_epel_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)腾讯镜像源
2)Fedora镜像源
3)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-3)" NUM
case ${NUM} in
1)
tencent
set_epel_centos6
;;
2)
fedora
set_epel_2_centos6
;;
3)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-3)!"${END}
;;
esac
done
}
centos_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)base仓库
2)EPEL仓库
3)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-3)" NUM
case ${NUM} in
1)
if [ ${OS_RELEASE_VERSION} == "8" ] &> /dev/null;then
centos8_base_menu
elif [ ${OS_RELEASE_VERSION} == "7" ] &> /dev/null;then
centos7_base_menu
else
centos6_base_menu
fi
;;
2)
if [ ${OS_RELEASE_VERSION} == "8" ] &> /dev/null;then
centos8_epel_menu
elif [ ${OS_RELEASE_VERSION} == "7" ] &> /dev/null;then
centos7_epel_menu
else
centos6_epel_menu
fi
;;
3)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-3)!"${END}
;;
esac
done
}
set_apt(){
mv /etc/apt/sources.list /etc/apt/sources.list.bak
cat > /etc/apt/sources.list <<-EOF
deb http://${URL}/ubuntu/ ${OS_CODENAME} main restricted universe multiverse
deb-src http://${URL}/ubuntu/ ${OS_CODENAME} main restricted universe multiverse
deb http://${URL}/ubuntu/ ${OS_CODENAME}-security main restricted universe multiverse
deb-src http://${URL}/ubuntu/ ${OS_CODENAME}-security main restricted universe multiverse
deb http://${URL}/ubuntu/ ${OS_CODENAME}-updates main restricted universe multiverse
deb-src http://${URL}/ubuntu/ ${OS_CODENAME}-updates main restricted universe multiverse
deb http://${URL}/ubuntu/ ${OS_CODENAME}-proposed main restricted universe multiverse
deb-src http://${URL}/ubuntu/ ${OS_CODENAME}-proposed main restricted universe multiverse
deb http://${URL}/ubuntu/ ${OS_CODENAME}-backports main restricted universe multiverse
deb-src http://${URL}/ubuntu/ ${OS_CODENAME}-backports main restricted universe multiverse
EOF
apt update
${COLOR}"${OS_ID} ${OS_RELEASE} APT源设置完成!"${END}
}
apt_menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)阿里镜像源
2)华为镜像源
3)腾讯镜像源
4)清华镜像源
5)网易镜像源
6)退出
EOF
echo -e '\E[0m'
read -p "请输入镜像源编号(1-6)" NUM
case ${NUM} in
1)
aliyun
set_apt
;;
2)
huawei
set_apt
;;
3)
tencent
set_apt
;;
4)
tuna
set_apt
;;
5)
netease
set_apt
;;
6)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-6)!"${END}
;;
esac
done
}
set_package_repository(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
centos_menu
else
apt_menu
fi
}
centos_minimal_install(){
${COLOR}'开始安装“Minimal安装建议安装软件包”,请稍等......'${END}
yum -y install gcc make autoconf gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel systemd-devel zlib-devel vim lrzsz tree tmux lsof tcpdump wget net-tools iotop bc bzip2 zip unzip nfs-utils man-pages &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} Minimal安装建议安装软件包已安装完成!"${END}
}
ubuntu_minimal_install(){
${COLOR}'开始安装“Minimal安装建议安装软件包”,请稍等......'${END}
apt -y install iproute2 ntpdate tcpdump telnet traceroute nfs-kernel-server nfs-common lrzsz tree openssl libssl-dev libpcre3 libpcre3-dev zlib1g-dev gcc openssh-server iotop unzip zip
${COLOR}"${OS_ID} ${OS_RELEASE} Minimal安装建议安装软件包已安装完成!"${END}
}
minimal_install(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
centos_minimal_install
else
ubuntu_minimal_install
fi
}
set_mail(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
rpm -q mailx &> /dev/null || yum -y install mailx &> /dev/null
read -p "请输入邮箱地址:" MAIL
read -p "请输入邮箱授权码:" AUTH
SMTP=`echo ${MAIL} |awk -F"@" '{print $2}'`
cat >~/.mailrc <<-EOF
set from=${MAIL}
set smtp=smtp.${SMTP}
set smtp-auth-user=${MAIL}
set smtp-auth-password=${AUTH}
set smtp-auth=login
set ssl-verify=ignore
EOF
else
dpkg -s mailutils &> /dev/null || apt -y install mailutils
fi
${COLOR}"${OS_ID} ${OS_RELEASE} 邮件设置完成,请重新登录后才能生效!"${END}
}
set_sshd_port(){
disable_selinux
disable_firewall
read -p "请输入端口号:" PORT
sed -i 's/#Port 22/Port '${PORT}'/' /etc/ssh/sshd_config
${COLOR}"${OS_ID} ${OS_RELEASE} 更改SSH端口号已完成，请重启系统后生效!"${END}
}
set_centos_eth(){
ETHNAME=`ip addr | awk -F"[ :]" '/^2/{print $3}'`
#修改网卡名称配置文件
sed -ri.bak '/^GRUB_CMDLINE_LINUX=/s@"$@ net.ifnames=0"@' /etc/default/grub
grub2-mkconfig -o /boot/grub2/grub.cfg >& /dev/null
#修改网卡文件名
mv /etc/sysconfig/network-scripts/ifcfg-${ETHNAME} /etc/sysconfig/network-scripts/ifcfg-eth0
${COLOR}"${OS_ID} ${OS_RELEASE} 网卡名已修改成功，请重新启动系统后才能生效!"${END}
}
set_ubuntu_eth(){
#修改网卡名称配置文件
sed -ri.bak '/^GRUB_CMDLINE_LINUX=/s@"$@ net.ifnames=0"@' /etc/default/grub
grub-mkconfig -o /boot/grub/grub.cfg >& /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} 网卡名已修改成功，请重新启动系统后才能生效!"${END}
}
set_eth(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
if [ ${OS_RELEASE_VERSION} == 6 ];then
${COLOR}"${OS_ID} ${OS_RELEASE} 不用修改网卡名"${END}
else
set_centos_eth
fi
else
set_ubuntu_eth
fi
}
check_ip(){
local IP=$1
VALID_CHECK=$(echo ${IP}|awk -F. '$1<=255&&$2<=255&&$3<=255&&$4<=255{print "yes"}')
if echo ${IP}|grep -E "^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$" >/dev/null; then
if [ ${VALID_CHECK} == "yes" ]; then
echo "IP ${IP} available!"
return 0
else
echo "IP ${IP} not available!"
return 1
fi
else
echo "IP format error!"
return 1
fi
}
set_centos_ip(){
while true; do
read -p "请输入IP地址:" IP
check_ip ${IP}
[ $? -eq 0 ] && break
done
read -p "请输入子网掩码位数:" C_PREFIX
while true; do
read -p "请输入网关地址:" GATEWAY
check_ip ${GATEWAY}
[ $? -eq 0 ] && break
done
cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<-EOF
DEVICE=eth0
NAME=eth0
BOOTPROTO=none
ONBOOT=yes
IPADDR=${IP}
PREFIX=${C_PREFIX}
GATEWAY=${GATEWAY}
DNS1=223.5.5.5
DNS2=180.76.76.76
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} IP地址和网关地址已修改成功,请重新启动系统后生效!"${END}
}
set_ubuntu_ip(){
while true; do
read -p "请输入IP地址:" IP
check_ip ${IP}
[ $? -eq 0 ] && break
done
read -p "请输入子网掩码位数:" U_PREFIX
while true; do
read -p "请输入网关地址:" GATEWAY
check_ip ${GATEWAY}
[ $? -eq 0 ] && break
done
cat > /etc/netplan/01-netcfg.yaml <<-EOF
network:
version: 2
renderer: networkd
ethernets:
eth0:
addresses: [${IP}/${U_PREFIX}]
gateway4: ${GATEWAY}
nameservers:
addresses: [223.5.5.5, 180.76.76.76]
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} IP地址和网关地址已修改成功,请重新启动系统后生效!"${END}
}
set_ip(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
set_centos_ip
else
set_ubuntu_ip
fi
}
set_hostname_all(){
read -p "请输入主机名:" HOST
hostnamectl set-hostname ${HOST}
${COLOR}"${OS_ID} ${OS_RELEASE} 主机名设置成功，请重新登录生效!"${END}
}
set_hostname6(){
read -p "请输入主机名:" HOST
sed -i.bak -r '/^HOSTNAME/s#^(HOSTNAME=).*#\1'${HOST}'#' /etc/sysconfig/network
${COLOR}"${OS_ID} ${OS_RELEASE} 主机名设置成功，请重新登录生效!"${END}
}
set_hostname(){
if [ ${OS_RELEASE_VERSION} == 6 ] &> /dev/null;then
set_hostname6
else
set_hostname_all
fi
}
red(){
P_COLOR=31
}
green(){
P_COLOR=32
}
yellow(){
P_COLOR=33
}
blue(){
P_COLOR=34
}
violet(){
P_COLOR=35
}
cyan_blue(){
P_COLOR=36
}
random_color(){
P_COLOR="$[RANDOM%7+31]"
}
centos_ps1(){
C_PS1=`echo "PS1='\[\e[1;${P_COLOR}m\][\u@\h \W]\\$ \[\e[0m\]'" > /etc/profile.d/env.sh`
}
set_centos_ps1(){
TIPS="${COLOR}${OS_ID} ${OS_RELEASE} PS1已设置完成,请重新登录生效!${END}"
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)31 红色
2)32 绿色
3)33 黄色
4)34 蓝色
5)35 紫色
6)36 青色
7)随机颜色
8)退出
EOF
echo -e '\E[0m'
read -p "请输入颜色编号(1-8)" NUM
case ${NUM} in
1)
red
centos_ps1
${TIPS}
;;
2)
green
centos_ps1
${TIPS}
;;
3)
yellow
centos_ps1
${TIPS}
;;
4)
blue
centos_ps1
${TIPS}
;;
5)
violet
centos_ps1
${TIPS}
;;
6)
cyan_blue
centos_ps1
${TIPS}
;;
7)
random_color
centos_ps1
${TIPS}
;;
8)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-9)!"${END}
;;
esac
done
}
ubuntu_ps1(){
U_PS1=`echo "PS1='\[\e[1;${P_COLOR}m\]${debian_chroot:+($debian_chroot)}\u@\h:\W\\$ \[\e[0m\]'" >> ~/.bashrc`
}
unsetps1(){
CURRENTPS1SET=`awk -F"=" '/^PS1/{print $1}' ~/.bashrc | head -1`
if [ ${CURRENTPS1SET} == "PS1" ] &> /dev/null;then
sed -i "/^PS1.*/d" ~/.bashrc
${COLOR}已清空PS1设置,请重新设置!${END}
else
${COLOR}没有设置PS1,请直接设置!${END}
fi
}
set_ubuntu_ps1(){
TIPS="${COLOR}${OS_ID} ${OS_RELEASE} PS1已设置完成,请重新登录生效!${END}"
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
1)31 红色
2)32 绿色
3)33 黄色
4)34 蓝色
5)35 紫色
6)36 青色
7)随机颜色
8)清空PS1设置
9)退出
EOF
echo -e '\E[0m'
read -p "请输入颜色编号(1-9)" NUM
case ${NUM} in
1)
red
ubuntu_ps1
${TIPS}
;;
2)
green
ubuntu_ps1
${TIPS}
;;
3)
yellow
ubuntu_ps1
${TIPS}
;;
4)
blue
ubuntu_ps1
${TIPS}
;;
5)
violet
ubuntu_ps1
${TIPS}
;;
6)
cyan_blue
ubuntu_ps1
${TIPS}
;;
7)
random_color
ubuntu_ps1
${TIPS}
;;
8)
unsetps1
;;
9)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-9)!"${END}
;;
esac
done
}
set_ps1(){
if [ ${OS_ID} == "CentOS" ] &> /dev/null;then
set_centos_ps1
else
set_ubuntu_ps1
fi
}
set_swap(){
sed -ri 's/.*swap.*/#&/' /etc/fstab
swapoff -a
${COLOR}"${OS_ID} ${OS_RELEASE} 禁用swap成功!"${END}
}
set_kernel(){
cat > /etc/sysctl.conf <<-EOF
# Controls source route verification
net.ipv4.conf.default.rp_filter = 1
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_forward = 1
# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0
# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0
# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1
# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1
# Disable netfilter on bridges.
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
# Controls the default maxmimum size of a mesage queue
kernel.msgmnb = 65536
# # Controls the maximum size of a message, in bytes
kernel.msgmax = 65536
# Controls the maximum shared segment size, in bytes
kernel.shmmax = 68719476736
# # Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296
# TCP kernel paramater
net.ipv4.tcp_mem = 786432 1048576 1572864
net.ipv4.tcp_rmem = 4096 87380 4194304
net.ipv4.tcp_wmem = 4096 16384 4194304
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_sack = 1
# socket buffer
net.core.wmem_default = 8388608
net.core.rmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.core.netdev_max_backlog = 262144
net.core.somaxconn = 20480
net.core.optmem_max = 81920
# TCP conn
net.ipv4.tcp_max_syn_backlog = 262144
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_retries1 = 3
net.ipv4.tcp_retries2 = 15
# tcp conn reuse
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_max_tw_buckets = 20000
net.ipv4.tcp_max_orphans = 3276800
net.ipv4.tcp_synack_retries = 1
net.ipv4.tcp_syncookies = 1
# keepalive conn
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.ip_local_port_range = 10001 65000
# swap
vm.overcommit_memory = 0
vm.swappiness = 10
#net.ipv4.conf.eth1.rp_filter = 0
#net.ipv4.conf.lo.arp_ignore = 1
#net.ipv4.conf.lo.arp_announce = 2
#net.ipv4.conf.all.arp_ignore = 1
#net.ipv4.conf.all.arp_announce = 2
EOF
sysctl -p &> /dev/null
${COLOR}"${OS_ID} ${OS_RELEASE} 优化内核参数成功!"${END}
}
set_limits(){
cat >> /etc/security/limits.conf <<-EOF
root soft core unlimited
root hard core unlimited
root soft nproc 1000000
root hard nproc 1000000
root soft nofile 1000000
root hard nofile 1000000
root soft memlock 32000
root hard memlock 32000
root soft msgqueue 8192000
root hard msgqueue 8192000
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} 优化资源限制参数成功!"${END}
}
set_root_login(){
PASSWORD=123456
echo ${PASSWORD} |sudo -S sed -ri 's@#(PermitRootLogin )prohibit-password@\1yes@' /etc/ssh/sshd_config
sudo systemctl restart sshd
sudo -S passwd root <<-EOF
${PASSWORD}
${PASSWORD}
EOF
${COLOR}"${OS_ID} ${OS_RELEASE} root用户登录已设置完成,请重新登录后生效!"${END}
}
ubuntu_remove(){
apt purge ufw lxd lxd-client lxcfs liblxc-common
${COLOR}"${OS_ID} ${OS_RELEASE} 无用软件包卸载完成!"${END}
}
menu(){
while true;do
echo -e "\E[$[RANDOM%7+31];1m"
cat <<-EOF
*********************************************************
* 初始化脚本菜单 *
* 1.禁用SELinux 12.修改IP地址和网关地址 *
* 2.关闭防火墙 13.设置主机名 *
* 3.优化SSH 14.设置PS1(请进入选择颜色) *
* 4.设置系统别名 15.禁用SWAP *
* 5.1-4全设置 16.优化内核参数 *
* 6.设置vimrc配置文件 17.优化资源限制参数 *
* 7.设置软件包仓库 18.Ubuntu设置root用户登录 *
* 8.Minimal安装建议安装软件 19.Ubuntu卸载无用软件包 *
* 9.安装邮件服务并配置邮件 20.重启系统 *
* 10.更改SSH端口号 21.退出 *
* 11.修改网卡名 *
*********************************************************
EOF
echo -e '\E[0m'
read -p "请选择相应的编号(1-21): " choice
case ${choice} in
1)
disable_selinux
;;
2)
disable_firewall
;;
3)
optimization_sshd
;;
4)
set_alias
;;
5)
disable_selinux
disable_firewall
optimization_sshd
set_alias
;;
6)
set_vimrc
;;
7)
set_package_repository
;;
8)
minimal_install
;;
9)
set_mail
;;
10)
set_sshd_port
;;
11)
set_eth
;;
12)
set_ip
;;
13)
set_hostname
;;
14)
set_ps1
;;
15)
set_swap
;;
16)
set_kernel
;;
17)
set_limits
;;
18)
set_root_login
;;
19)
ubuntu_remove
;;
20)
reboot
;;
21)
break
;;
*)
${COLOR}"输入错误,请输入正确的数字(1-21)!"${END}
;;
esac
done
}
main(){
os
menu
}
main