shell基础之编译安装nginx

本节新学知识：if 判断语句

 1 #!/bin/bash
 2 #检查环境
 3 SESTATE=`getenforce`
 4 if [ $SESTATE != "Disabled" ]
 5 then
 6 setenforce 0
 7 sed -i 's/=enforcing/=disabled/g' /etc/selinux/config
 8 else
 9 echo "selinux已关闭"
10 fi
11 systemctl start firewalld
12 systemctl enable firewalld
13 #挂载点是否存在
14 MNTP=`ls / |grep local_dvd`
15 if [ -z "$MNTP" ]
16 then
17 mkdir /local_dvd
18 echo "创建挂载点"
19 else
20 echo "已存在挂载点"
21 fi
22 #检查是否挂载
23 MNT=`mount |grep local_dvd`
24 if [ -z "$MNT" ]
25 then
26 mount /dev/cdrom /local_dvd
27 echo "/dev/sr0  /local_dvd iso9660 defaults 0 0 " >> /etc/fstab
28 echo "挂载"
29 else
30 echo "已经挂载"
31 fi
32 #配置本地yum源
33 LOCALYUM=`ls /etc/yum.repos.d/ |grep local.repo`
34 if [ -z "$LOCALYUM" ]
35 then
36 rm -rf /etc/yum.repos.d/*.repo
37 echo "
38 [local]
39 name=local
40 baseurl=file:///local_dvd
41 enabled=1
42 gpgcheck=0 " > /etc/yum.repos.d/local.repo
43 yum clean all
44 echo "本地yum源"
45 else
46 echo "已配置本地yum源"
47 fi
48 #查看本地是否安装nginx
49 INSTALL=`ls /usr/local |grep nginx`
50 if [ -z "$INSTALL" ]
51 then
52 #解压nginx包
53 cd ~/
54 pwd
55 tar xzf nginx-1.15.1.tar.gz
56 #安装
57 yum -y install gcc-* zlib-* pcre-*
58 #安装nginx
59 cd ~/nginx-1.15.1
60 pwd
61 ./configure && make && make install
62 fi
63 echo "已安装nginx"
64 RUN=`ps aux |grep nginx |grep master |awk '{print $2}'`
65 if [ -z "$RUN" ]
66 then
67 /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
68 echo "启动nginx"
69 else
70 echo "已启动nginx"
71 fi
72 FIREPORT=`firewall-cmd --list-port |grep 80/tcp`
73 if [ -z $FIREPORT ]
74 then
75 firewall-cmd --add-port=80/tcp
76 firewall-cmd --add-port=80/tcp --permanent
77 echo "添加防火墙端口成功"
78 else
79 echo "已添加80/tcp端口"
80 fi