基础

笔记

• 选择安装JeMalloc或者TCMalloc, 则在编译安装 mysql 和 nginx时存在添加对应的扩展选项
• swap 策略: x<1024, y=1024; 1024<x<2048, y=2048; 2048<x<4096, y=4096; 4096<x<16384, y=8192; x>16384,y=8192
• swap 需要考虑剩余磁盘空间
• 安装系统相关库时, 需要动态链接
• 脚本运行前执行clear, 清空控制台

软件介绍

• FreeType库是一个完全免费(开源)的, 高质量的且可移植的字体引擎, 它提供统一的接口来访问多种字体格式文件
• PCRE(Perl Compatible Regular Expressions)是一个Perl库, 包括 perl 兼容的正则表达式库
• Boost库是一个可移植、提供源代码的C++库
• cmake读入所有源文件之后, 自动生成makefile, make依据makefile来批处理编译

版本号

格式: major.minor.maintenance.build

• major: 是主版本号, 一般在软件有重大升级时增长
• minor: 是次版本号, 一般在软件有新功能时增长
• maintenance: 是维护版本, 一般在软件有问题修复后增长
• build: 是构建版本, 一般只要软件被重新编译过就会增长

.user.ini

配置参考地址: http://php.net/manual/zh/ini.list.php

• 只有 PHP_INI_USER 和 PHP_INI_ALL可以被 .user.ini 和 ini_set 还有 nginx 设置
• PHP_INI_PERDIR可在 php.ini, .htaccess 或 httpd.conf 中设定
• PHP_INI_SYSTEM 可在 php.ini 或 httpd.conf 中设定
• .user.ini 文件路径 DOCUMENT_ROOT 下

nginx

• 通过增加配置PHP_ADMIN_VALUE设置 php.ini 的值, 优先级高于 .user.ini

fastcgi_param PHP_ADMIN_VALUE "open_basedir=$document_root/:/tmp/:/proc/:/home/wwwlogs/php_seaslog/";

php.ini

• 默认用户配置文件为 .user.ini

user_ini.filename = ".user.ini"

文件描述符

• 系统级别: 使用cat /proc/sys/fs/file-max查看, 默认值是根据内存大小自动设置, 一般为内存为 x KB, 则描述符数量为 x/10
• 用户级别: 默认为 1024
• 限制原因: 1. 内存资源有限 2. 防止程序恶意创建, 影响系统稳定性
• 用户级别优先级高于系统级别

系统级别

# 查看
cat /proc/sys/fs/file-max

# 临时设置
echo 1000000 > /proc/sys/fs/file-max

# 永久设置
vi /etc/sysctl.conf
fs.file-max = 1000000

用户级别

/etc/security/limits.conf

* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535

• 第一列表示用户和组(@开头), * 表示所有用户, 第二列表示软限制还是硬限制, 第三列表示限制的资源类型, 第四列表示限制的最大值
• /etc/security/limits.d/ 里面配置会覆盖 /etc/security/limits.conf 的配置
• core 是内核文件, nofile 是文件描述符, noproc 是进程
• hard和soft的区别: soft是一个警告值, 而hard则是一个真正意义的阀值, 超过就会报错, 一般情况下都是设为同一个值

# soft 查看
ulimit -Sn

# hard 查看
ulimit -Hn

# 临时设置
## soft
ulimit -Sn 160000
## hard
ulimit -Hn 160000

# 同时设置
ulimit -n 180000

# 配置文件
cat >>/etc/security/limits.conf<<eof
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
eof

安装

编译安装Mysql

wget https://soft.vpser.net/datebase/mysql/mysql-5.7.26.tar.gz
tar xzf mysql-5.7.26.tar.gz
wget https://soft.vpser.net/lib/boost/boost_1_59_0.tar.bz2
tar jxf boost_1_59_0.tar.bz2

# 编译安装
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DSYSCONFDIR=/etc -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8mb4 -DDEFAULT_COLLATION=utf8mb4_general_ci -DWITH_EMBEDDED_SERVER=1 -DENABLED_LOCAL_INFILE=1 -DWITH_BOOST=${cur_dir}/src/boost_${Get_Boost_Ver}
make -j `grep 'processor' /proc/cpuinfo | wc -l`
if [ $? -ne 0 ]; then
    make
fi
make install

# 用户组
groupadd mysql
useradd -s /sbin/nologin -M -g mysql mysql

chown -R mysql:mysql ${MySQL_Data_Dir}
# 初始化数据库
/usr/local/mysql/bin/mysqld --initialize-insecure --basedir=/usr/local/mysql --datadir=${MySQL_Data_Dir} --user=mysql
chgrp -R mysql /usr/local/mysql/.
\cp support-files/mysql.server /etc/init.d/mysql
# 可执行权限
chmod 755 /etc/init.d/mysql

# 添加动态库
cat > /etc/ld.so.conf.d/mysql.conf<<EOF
/usr/local/mysql/lib
/usr/local/lib
EOF

ldconfig
ln -sf /usr/local/mysql/lib/mysql /usr/lib/mysql
ln -sf /usr/local/mysql/include/mysql /usr/include/mysql

后续处理

# 设置密码
UPDATE mysql.user SET authentication_string=PASSWORD('${DB_Root_Password}') WHERE User='root';

# 删除匿名用户
DELETE FROM mysql.user WHERE User='';

# 删除远程登录用户
DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1');

# 删除测试数据库
DROP DATABASE test;

# 刷新权限
FLUSH PRIVILEGES;

编译安装 php

# 编译安装 --disable-fileinfo
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-config-file-scan-dir=/usr/local/php/conf.d --enable-fpm --with-fpm-user=www --with-fpm-group=www --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-iconv-dir --with-freetype-dir=/usr/local/freetype --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --enable-intl --enable-pcntl --with-mcrypt --enable-ftp --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --with-gettext --enable-opcache --with-xsl 

make ZEND_EXTRA_LIBS='-liconv' -j `grep 'processor' /proc/cpuinfo | wc -l`
if [ $? -ne 0 ]; then
    make ZEND_EXTRA_LIBS='-liconv'
fi
make install

# 创建执行命令软连接
ln -sf /usr/local/php/bin/php /usr/bin/php
ln -sf /usr/local/php/bin/phpize /usr/bin/phpize
ln -sf /usr/local/php/bin/pear /usr/bin/pear
ln -sf /usr/local/php/bin/pecl /usr/bin/pecl
if [ "${Stack}" = "lnmp" ]; then
    ln -sf /usr/local/php/sbin/php-fpm /usr/bin/php-fpm
fi
rm -f /usr/local/php/conf.d/*

# 设置包管理使用的 php.ini
pear config-set php_ini /usr/local/php/etc/php.ini
pecl config-set php_ini /usr/local/php/etc/php.ini

# 安装 composer
curl -sS --connect-timeout 30 -m 60 https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

# 添加启动任务
\cp ${cur_dir}/src/${Php_Ver}/sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
    chmod +x /etc/init.d/php-fpm

工具

cat >phpinfo.php<<eof
<?php
phpinfo();
?>
eof

编译安装 nginx

groupadd www
useradd -s /sbin/nologin -g www www

Nginx_With_Openssl=--with-openssl=${cur_dir}/src/${Openssl_New_Ver} --with-openssl-opt='enable-weak-ssl-ciphers'
./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_v2_module --with-http_gzip_static_module --with-http_sub_module --with-stream --with-stream_ssl_module ${Nginx_With_Openssl} ${Nginx_Module_Lua} ${NginxMAOpt} ${Nginx_Modules_Options}

lua 配置

location /lua
{
    default_type text/html;
    content_by_lua 'ngx.say("hello world")';
}

流程

1. 创建组
2. 编译安装
3. 设置软连接
4. 开机自启
5. 覆盖配置
6. 创建日志目录

安装流程

1. 获取系统类型, 系统位数, 设置包管理工具
2. 判断系统是否在支持范围
3. 判断 lnmp 是否已安装
4. 检查 lnmp.conf 的配置
5. DB, PHP, MemoryAllocator 选择
6. 按任意键安装
7. 打印安装应用信息
8. 获取系统版本
9. 打印系统信息
10. 判断本机 host 是否有 localhost
11. 检查 DNS 是否正确
12. 检查镜像是否有效
13. 增加 swap 内存
14. 设置时区
15. 安装 ntp, 同步系统时间
16. 删除已安装的Apache, mysql, php, libcurl
17. 检查 yum 的配置, 是否有不包含的 repo
18. 安装依赖
19. 禁止 SELINUX
20. 下载相关源码包
21. 安装依赖 Libiconv Libmcrypt Mhash Mcrypt FreeType pecr Icu4c
22. 动态库连接, 设置文件描述符数, 进程数
23. 安装数据库, 添加用户 msyql
24. 删除测试数据库配置, 编译包
25. 确定 php 的编译选项, openssl: --with-openssl; curl: --with-curl; fileinfo: 如果内存小于 1G 且设置为 n 则为 --disable-fileinfo
26. 安装 php
27. 调整 PHP 的配置: 1024<内存<2048 10-20; 2048<内存<4096 20-40; 4096<内存<8192 40-60; 8192<内存 60-80;
28. 安装 nginx, 添加用户 www, 添加 openssl 选项, lua 选项
29. 安装 php 工具: 1. phpinfo.php 2. 探针 3. 欢迎页 4. phpMyAdmin
30. 添加 iptables 规则, 关闭防火墙
31. 调整 lnmp 脚本
32. 校验安装是否成功

其他工具

tool/*

• backup.sh 数据备份
• check502.sh 校验地址否是 502 网关错误
• cut_nginx_logs.sh nginx 日志切割
• denyhosts_removeip.sh 解除 denyhost 屏蔽
• denyhosts.sh 预防 SSH 暴力破解的
• fail2ban.sh 防止暴力破解
• remove_disable_function.sh 删除预定义禁用函数
• remove_open_basedir_restriction.sh 删除 open_basedir 的限制
• reset_mysql_root_password.sh 重置密码

addons.sh

1. eAccelerator
2. XCache
3. Memcached
4. opcache
5. Redis
6. apcu
7. imageMagick
8. ionCube Loader

卸载流程

1. 关闭 lnmp
2. 删除 nginx, php-fpm, mysql 的开机自启
3. 备份 mysql 的数据
4. 删除下述目录

/usr/local/php
/etc/init.d/nginx
/etc/init.d/msyql
/etc/init.d/php-fpm
/usr/local/zend
/etc/my.cnf
/bin/lnmp

常用命令

php

# 编译参数
php -i|grep configure

# 扩展地址
/usr/local/php/bin/php-config --extension-dir

# 卸载
rpm -e php-mysql php-cli php-gd php-common php --nodeps

nginx

# 查看编译参数
nginx -V

mysql

# 版本
/usr/local/mysql/bin/mysql_config --version

# 校验密码是否正常
Make_TempMycnf()
{
cat >~/.my.cnf<<EOF
[client]
user=root
password='$1'
socket=/home/mysql/tmp/mysql.sock
EOF
    chmod 600 ~/.my.cnf
}

Verify_DB_Password()
{
    status=1
    while [ $status -eq 1 ]; do
        read -s -p "Enter current root password of Database (Password will not shown): " DB_Root_Password
        Make_TempMycnf "${DB_Root_Password}"
        Do_Query ""
        status=$?
    done
    echo "OK, MySQL root password correct."
}

TempMycnf_Clean()
{
    if [ -s ~/.my.cnf ]; then
        rm -f ~/.my.cnf
    fi
    if [ -s /tmp/.mysql.tmp ]; then
        rm -f /tmp/.mysql.tmp
    fi
}

# 卸载
yum -y remove mysql-server mysql mysql-libs mariadb-server mariadb mariadb-libs
rpm -e mysql mysql-libs --nodeps
rpm -e mariadb mariadb-libs --nodeps

yum

## 检查 yum 的配置, 是否有不包含的 repo
sed -i 's:exclude=.*:exclude=:g' /etc/yum.conf

python

计算当前目录剩余空间, 单位 G

#!/usr/bin/env python
import os

dir = os.path.dirname(__file__)
disk = os.statvfs(dir)
Avail = disk.f_bavail * disk.f_bsize / (1024*1024*1024)
print(int(Avail))

iptables

规则

iptables -I INPUT 1 -i lo -j ACCEPT
# 已经创建的连接和封包和本机有关的连接匹配规则
iptables -I INPUT 2 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -I INPUT 3 -p tcp --dport 22 -j ACCEPT
iptables -I INPUT 4 -p tcp --dport 80 -j ACCEPT
iptables -I INPUT 5 -p tcp --dport 443 -j ACCEPT
iptables -I INPUT 6 -p tcp --dport 3306 -j DROP
iptables -I INPUT 7 -p icmp -m icmp --icmp-type 8 -j ACCEPT

服务

yum -y install iptables-services
service iptables save
service iptables reload
if command -v firewalld >/dev/null 2>&1; then
    systemctl stop firewalld
    systemctl disable firewalld
fi
chkconfig --add iptables
chkconfig iptables on

lnmp 脚本

# 排除 mysql
sed -i 's#/etc/init.d/mysql.*##' /bin/lnmp

其他

源码地址

https://soft.vpser.net/web/libiconv/libiconv-1.15.tar.gz
https://soft.vpser.net/web/libmcrypt/libmcrypt-2.5.8.tar.gz
https://soft.vpser.net/web/mcrypt/mcrypt-2.6.8.tar.gz
https://soft.vpser.net/web/mhash/mhash-0.9.9.9.tar.bz2
https://soft.vpser.net/web/nginx/nginx-1.16.1.tar.gz
https://soft.vpser.net/web/php/php-7.1.33.tar.bz2
https://soft.vpser.net/datebase/mysql/mysql-5.7.26.tar.gz
https://soft.vpser.net/datebase/phpmyadmin/phpMyAdmin-4.9.1-all-languages.tar.xz
https://soft.vpser.net/prober/p.tar.gz
https://soft.vpser.net/lib/openssl/openssl-1.0.2t.tar.gz
https://soft.vpser.net/lib/boost/boost_1_59_0.tar.bz2
https://soft.vpser.net/web/php/composer/composer.phar

SHELL学习

系统信息

内存大小

[ `free -m | grep Mem | awk '{print  $2}'` -le 1024 ]

版本信息

cat /etc/*-release

内存大小

free -m | grep Mem | awk '{print  $2}'

Swap 大小

free -m | grep Swap | awk '{print  $2}'

磁盘大小

df -h

openssl 版本

openssl version

centos 版本

echo "$(python2 -c 'import platform; print platform.linux_distribution()[1]')"

lsb_release -rs

系统类型, 区分安装工具

if grep -Eqi "CentOS" /etc/issue || grep -Eq "CentOS" /etc/*-release; then
    DISTRO='CentOS'
    PM='yum'
elif grep -Eqi "Red Hat Enterprise Linux" /etc/issue || grep -Eq "Red Hat Enterprise Linux" /etc/*-release; then
    DISTRO='RHEL'
    PM='yum'
elif grep -Eqi "Aliyun" /etc/issue || grep -Eq "Aliyun" /etc/*-release; then
    DISTRO='Aliyun'
    PM='yum'
elif grep -Eqi "Fedora" /etc/issue || grep -Eq "Fedora" /etc/*-release; then
    DISTRO='Fedora'
    PM='yum'
elif grep -Eqi "Amazon Linux" /etc/issue || grep -Eq "Amazon Linux" /etc/*-release; then
    DISTRO='Amazon'
    PM='yum'
elif grep -Eqi "Debian" /etc/issue || grep -Eq "Debian" /etc/*-release; then
    DISTRO='Debian'
    PM='apt'
elif grep -Eqi "Ubuntu" /etc/issue || grep -Eq "Ubuntu" /etc/*-release; then
    DISTRO='Ubuntu'
    PM='apt'
elif grep -Eqi "Raspbian" /etc/issue || grep -Eq "Raspbian" /etc/*-release; then
    DISTRO='Raspbian'
    PM='apt'
elif grep -Eqi "Deepin" /etc/issue || grep -Eq "Deepin" /etc/*-release; then
    DISTRO='Deepin'
    PM='apt'
elif grep -Eqi "Mint" /etc/issue || grep -Eq "Mint" /etc/*-release; then
    DISTRO='Mint'
    PM='apt'
elif grep -Eqi "Kali" /etc/issue || grep -Eq "Kali" /etc/*-release; then
    DISTRO='Kali'
    PM='apt'
else
    DISTRO='unknow'
fi

RHEL 版本

判断是否是版本 7.*

[ grep -Eqi "release 7." /etc/redhat-release ]

系统位数

# 64位的系统中int类型还是4字节的，但是long已变成了8字节
if [[ `getconf WORD_BIT` = '32' && `getconf LONG_BIT` = '64' ]] ; then
    Is_64bit='y'
else
    Is_64bit='n'
fi

判断系统架构是否为 arm

if uname -m | grep -Eqi "arm|aarch64"; then
    Is_ARM='y'
fi

地理位置

curl -sSk --connect-timeout 30 -m 60 https://ip.vpser.net/country

系统管理

设置时区

ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

创建Swap分区

DD_Count=1024
echo "Add Swap file..."
dd if=/dev/zero of=/var/swapfile bs=1M count=${DD_Count}
chmod 0600 /var/swapfile
echo "Enable Swap..."
/sbin/mkswap /var/swapfile
/sbin/swapon /var/swapfile
if [ $? -eq 0 ]; then
    [ `grep -L '/var/swapfile'    '/etc/fstab'` ] && echo "/var/swapfile swap swap defaults 0 0" >>/etc/fstab
    /sbin/swapon -s
else
    rm -f /var/swapfile
    echo "Add Swap Failed!"
fi

禁止 selinux

if [ -s /etc/selinux/config ]; then
    sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config
fi

设置虚拟内存使用大小

ulimit -v unlimited

配置库路径

if [ `grep -L "/lib"    '/etc/ld.so.conf'` ]; then
    echo "/lib" >> /etc/ld.so.conf
fi

if [ `grep -L '/usr/lib'    '/etc/ld.so.conf'` ]; then
    echo "/usr/lib" >> /etc/ld.so.conf
    ##echo "/usr/lib/openssl/engines" >> /etc/ld.so.conf
fi

if [ -d "/usr/lib64" ] && [ `grep -L '/usr/lib64'    '/etc/ld.so.conf'` ]; then
    echo "/usr/lib64" >> /etc/ld.so.conf
    ##echo "/usr/lib64/openssl/engines" >> /etc/ld.so.conf
fi

if [ `grep -L '/usr/local/lib'    '/etc/ld.so.conf'` ]; then
    echo "/usr/local/lib" >> /etc/ld.so.conf
fi

配置文件描述符数量和进程数量

cat >>/etc/security/limits.conf<<eof
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
eof
echo "fs.file-max=65535" >> /etc/sysctl.conf

自启管理

# 开启
chkconfig --add lnmp
chkconfig lnmp on

# 关闭
chkconfig lnmp off
chkconfig --del lnmp

进程和命令

判断进程是否存在

if ps aux | grep "yum" | grep -qv "grep"; then
    # 判断命令是否存在
    if command -v killall >/dev/null 2>&1; then
        # 关闭程序
        killall yum
    else
        # 关闭程序
        kill `pidof yum`
    fi
fi

关闭程序

kill `pidof yum`
killall yum

语法

变量为 6789 或者等于 10

[[ "${DBSelect}" =~ ^[6789]|10$ ]]

随机值

echo "lnmp.org##$RANDOM"

判断目录是否存在, 存在删除

[[ -d "${DirName}" ]] && rm -rf ${DirName}

动态变量名

eval echo "${DISTRO} \${${DISTRO}_Version}"

局部数组变量声明

local -a

最佳实践

选择 yes 或者 no

case "${InstallInnodb}" in
[yY][eE][sS]|[yY])
    echo "${InstallInnodb}"
    ;;
[nN][oO]|[nN])
    echo "${InstallInnodb}"
    ;;
*)
    echo "${InstallInnodb}"
esac

删除前置0, 默认值为 0

echo ${version[0]:=0} | sed 's/^0*//'

字符串分割

version=1.2.3.4
OLDIFS=${IFS} && IFS=. && version=(${version}) && IFS=${OLDIFS}

值排序比较

local -a sorted=($(printf "%s\n%s" "${v1}" "${v2}" | sort ))
if [ "${v1}" == "${sorted[0]}" ]; then echo -1; else echo 1; fi

工具类

字体

Color_Text()
{
  echo -e " \e[0;$2m$1\e[0m"
}

Echo_Red()
{
  echo $(Color_Text "$1" "31")
}

Echo_Green()
{
  echo $(Color_Text "$1" "32")
}

Echo_Yellow()
{
  echo $(Color_Text "$1" "33")
}

Echo_Blue()
{
  echo $(Color_Text "$1" "34")
}

按键继续

if [ -z ${LNMP_Auto} ]; then
    echo ""
    Echo_Green "Press any key to install...or Press Ctrl+c to cancel"
    OLDCONFIG=`stty -g`
    stty -icanon -echo min 1 time 0
    dd count=1 2>/dev/null
    stty ${OLDCONFIG}
fi

判断文件是否存在, 不存在则下载

Download_Files()
{
    local URL=$1
    local FileName=$2
    if [ -s "${FileName}" ]; then
        echo "${FileName} [found]"
    else
        echo "Notice: ${FileName} not found!!!download now..."
        wget -c --progress=bar:force --prefer-family=IPv4 --no-check-certificate ${URL}
    fi
}

编译

Make_Install()
{
    # 尝试多进程编译
    make -j `grep 'processor' /proc/cpuinfo | wc -l`
    if [ $? -ne 0 ]; then
        make
    fi
    make install
}

解压

Tar_Cd()
{
    local FileName=$1
    local DirName=$2
    cd ${cur_dir}/src
    [[ -d "${DirName}" ]] && rm -rf ${DirName}
    echo "Uncompress ${FileName}..."
    tar zxf ${FileName}
    if [ -n "${DirName}" ]; then
        echo "cd ${DirName}..."
        cd ${DirName}
    fi
}

随机 Secret

sed -i 's/LNMPORG/LNMP.org_0'$RANDOM`date '+%s'`$RANDOM'9_VPSer.net/g' config.inc.php

倒计时

Sleep_Sec()
{
    seconds=$1
    while [ "${seconds}" -ge "0" ];do
      echo -ne "\r     \r"
      echo -n ${seconds}
      seconds=$(($seconds - 1))
      sleep 1
    done
    echo -ne "\r"
}

死循环读取字符串

while :;do
    read -p "Enter website root directory: " website_root
    if [ -d "${website_root}" ]; then
        # TODO: something
        break
    else
        echo "${website_root} is not directory or not exist!"
    fi
done

提示

clear
echo "+-------------------------------------------------------------------+"
echo "|     Remove PHP disable functions for LNMP, Written by Licess      |"
echo "+-------------------------------------------------------------------+"
echo "|         A tool to remove PHP disable_functions for LNMP           |"
echo "+-------------------------------------------------------------------+"
echo "|        For more information please visit https://lnmp.org         |"
echo "+-------------------------------------------------------------------+"
echo "|             Usage: ./remove_disable_function.sh                   |"
echo "+-------------------------------------------------------------------+"

网络

判断 host 是否包含 127.0.0.1

 if grep -Eqi '^127.0.0.1[[:space:]]*localhost' /etc/hosts; then
    echo "Hosts: ok."
else
    ## 添加 localhost 环路到配置文件
    echo "127.0.0.1 localhost.localdomain localhost" >> /etc/hosts
fi

判断 dns 是否正确

pingresult=`ping -c1 lnmp.org 2>&1`
echo "${pingresult}"
if echo "${pingresult}" | grep -q "unknown host"; then
    echo "DNS...fail"
    echo "Writing nameserver to /etc/resolv.conf ..."
    echo -e "nameserver 208.67.220.220\nnameserver 114.114.114.114" > /etc/resolv.conf
else
    echo "DNS...ok"
fi

自定义临时 dns 服务器

echo -e "nameserver 208.67.220.220\nnameserver 114.114.114.114" > /etc/resolv.conf

其他

阻止使用别名

\cp a b

批量创建目录

mkdir -p /usr/local/php/{etc,conf.d}

管道增加额外参数

curl -sS --connect-timeout 30 -m 60 https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

工具类

版本号对比

#!/bin/bash
# -*- tab-width: 2; encoding: utf-8 -*-

## @file version_compare
## Compare [semantic] versions in Bash, comparable to PHP's version_compare function.
# ------------------------------------------------------------------
## @author Mark Carver <mark.carver@me.com>
## @copyright MIT
## @version 1.0.0
## @see http://php.net/manual/en/function.version-compare.php

APP_NAME=$(basename ${0})
APP_VERSION="1.0.0"

# Version compare 
function version_compare () {
  # Default to a failed comparison result.
  local -i result=1;

  # Ensure there are two versions to compare.
  [ $# -lt 2 ] || [ -z "${1}" ] || [ -z "${2}" ] && echo "${FUNCNAME[0]} requires a minimum of two arguments to compare versions." &>/dev/stderr && return ${result}

  # Determine the operation to perform, if any.
  local op="${3}"
  
  # Convert passed versions into values for comparison.
  local v1=$(version_compare_convert ${1})
  local v2=$(version_compare_convert ${2})
  
  # Immediately return when comparing version equality (which doesn't require sorting).
  if [ -z "${op}" ]; then
    [ "${v1}" == "${v2}" ] && echo 0 && return;
  else
    if [ "${op}" == "!=" ] || [ "${op}" == "<>" ] || [ "${op}" == "ne" ]; then
      if [ "${v1}" != "${v2}" ]; then let result=0; fi;
      return ${result};
    elif [ "${op}" == "=" ] || [ "${op}" == "==" ] || [ "${op}" == "eq" ]; then
      if [ "${v1}" == "${v2}" ]; then let result=0; fi;
      return ${result};
    elif [ "${op}" == "le" ] || [ "${op}" == "<=" ] || [ "${op}" == "ge" ] || [ "${op}" == ">=" ] && [ "${v1}" == "${v2}" ]; then
      if [ "${v1}" == "${v2}" ]; then let result=0; fi;
      return ${result};
    fi
  fi
  
  # If we get to this point, the versions should be different.
  # Immediately return if they're the same.
  [ "${v1}" == "${v2}" ] && return ${result}
  
  local sort='sort'
  
  # If only one version has a pre-release label, reverse sorting so
  # the version without one can take precedence.
  [[ "${v1}" == *"-"* ]] && [[ "${v2}" != *"-"* ]] || [[ "${v2}" == *"-"* ]] && [[ "${v1}" != *"-"* ]] && sort="${sort} -r"

  # Sort the versions.
  local -a sorted=($(printf "%s\n%s" "${v1}" "${v2}" | ${sort}))
  
  # No operator passed, indicate which direction the comparison leans.
  if [ -z "${op}" ]; then
    if [ "${v1}" == "${sorted[0]}" ]; then echo -1; else echo 1; fi
    return
  fi
  
  case "${op}" in
    "<" | "lt" | "<=" | "le") if [ "${v1}" == "${sorted[0]}" ]; then let result=0; fi;;
    ">" | "gt" | ">=" | "ge") if [ "${v1}" == "${sorted[1]}" ]; then let result=0; fi;;
  esac

  return ${result}
}

# Converts a version string to an integer that is used for comparison purposes.
function version_compare_convert () {
  local version="${@}"

  # Remove any build meta information as it should not be used per semver spec.
  version="${version%+*}"

  # Extract any pre-release label.
  local prerelease
  [[ "${version}" = *"-"* ]] && prerelease=${version##*-}
  [ -n "${prerelease}" ] && prerelease="-${prerelease}"
  
  version="${version%%-*}"

  # Separate version (minus pre-release label) into an array using periods as the separator.
  local OLDIFS=${IFS} && local IFS=. && version=(${version%-*}) && IFS=${OLDIFS}
  
  # Unfortunately, we must use sed to strip of leading zeros here.
  local major=$(echo ${version[0]:=0} | sed 's/^0*//')
  local minor=$(echo ${version[1]:=0} | sed 's/^0*//')
  local patch=$(echo ${version[2]:=0} | sed 's/^0*//')
  local build=$(echo ${version[3]:=0} | sed 's/^0*//')

  # Combine the version parts and pad everything with zeros, except major.
  printf "%s%04d%04d%04d%s\n" "${major}" "${minor}" "${patch}" "${build}" "${prerelease}"
}

# Color Support
# See: http://unix.stackexchange.com/a/10065
if test -t 1; then
  ncolors=$(tput colors)
  if test -n "$ncolors" && test $ncolors -ge 8; then
    bold="$(tput bold)" && underline="$(tput smul)" && standout="$(tput smso)" && normal="$(tput sgr0)"
    black="$(tput setaf 0)" && red="$(tput setaf 1)" && green="$(tput setaf 2)" && yellow="$(tput setaf 3)"
    blue="$(tput setaf 4)" && magenta="$(tput setaf 5)" && cyan="$(tput setaf 6)" && white="$(tput setaf 7)"
  fi
fi

function version_compare_usage {
  echo "${bold}${APP_NAME} (${APP_VERSION})${normal}"
  echo "Compare [semantic] versions in Bash, comparable to PHP's version_compare function."
  echo
  echo "    - When ${cyan}<operator>${normal} is NOT provided, ${APP_NAME} will output (print to /dev/stdout):"
  echo "          -1: ${cyan}<version1>${normal} is lower than ${cyan}<version2>${normal}"
  echo "           0: ${cyan}<version1>${normal} and ${cyan}<version2>${normal} are equal"
  echo "           1: ${cyan}<version2>${normal} is lower than ${cyan}<version1>${normal}"
  echo
}

# Do not continue if sourced.
[[ ${0} != "$BASH_SOURCE" ]] && return

# Process options.
while getopts ":hV" opt; do
    case $opt in
      h) version_compare_usage && exit;;
      V) echo "${APP_VERSION}" && exit;;
      \?|*) echo "${red}${APP_NAME}: illegal option: -- ${OPTARG}${normal}" >&2 && echo && version_compare_usage && exit 64;;
    esac
done
shift $((OPTIND-1)) # Remove parsed options.

# Allow script to be invoked as a CLI "command" by proxying arguments to the internal function.
[ $# -gt 0 ] && version_compare ${@}

配置

lnmp.conf

# 下载地址
Download_Mirror='https://soft.vpser.net'

# 检查镜像
Check_Mirror

# 数据库
DBSelect
DB_Root_Password
InstallInnodb

# php
PHPSelect
# 不安装-1
SelectMalloc 

# 自动安装
LNMP_Auto

选项

db

1. Install MySQL 5.1.73
2. Install MySQL 5.5.62 (Default)
3. Install MySQL 5.6.44
4. Install MySQL 5.7.26
5. Install MySQL 8.0.13
6. Install MariaDB 5.5.63
7. Install MariaDB 10.0.38
8. Install MariaDB 10.1.40
9. Install MariaDB 10.2.24
10. Install MariaDB 10.3.15
11. DO NOT Install MySQL/MariaDB

php

1. Install PHP 5.2.17
2. Install PHP 5.3.29
3. Install PHP 5.4.45
4. Install PHP 5.5.38
5. Install PHP 5.6.40 (Default)
6. Install PHP 7.0.33
7. Install PHP 7.1.30
8. Install PHP 7.2.19
9. Install PHP 7.3.6