wdcp的环境搭建shell脚本分析--install.sh
#!/bin/bash###
#定义screen的名字，下面安装会用screen这个命令
SCREEN_NAME="lanmp"
#根据$UID判断用户是否为root，必须root才能执行
if [ $UID != 0 ]; then
echo "You must be root to run the install script."
exit
fi
#根据命令行参数判断，参数为un或者uninstall时，停止服务，删除文件，卸载掉整个WDCP服务
if [ "$1" == "un" -o "$1" == "uninstall" ]; then
service httpd stop
service nginxd stop
service mysqld stop
service pureftpd stop
service wdapache stop
#建立文件备份目录
mkdir /www/backup
bf=$(date +%Y%m%d)
#打包数据库文件
tar zcf /www/backup/mysqlbk_$bf.tar.gz /www/wdlinux/mysql/var
rm -fr /www/wdlinux
rm -f /tmp/*_ins.txt
reboot
exit
fi
#对当前系统中是否存在screen进程进行判断，如果已经存在lanmp的screen进程，则提示，并退出
if type -p screen >/dev/null && screen -ls |grep -q ".$SCREEN_NAME"; then
echo "Seems another lanmp install session is taken place."
echo "Rejoin this session plz type: 'screen -r $SCREEN_NAME'."
exit 1
fi
#根据/etc/issue判断当前系统类型，然后根据type的返回结果，判断是否安装screen,没有安装，就进行安装
if grep -qi 'debian\|ubuntu' /etc/issue; then
type -p screen >/dev/null || apt-get -y install screen
else
type -p screen >/dev/null || yum -y install screen
fi
#准备安装的screen会话
#判断是否存在screen这个命令
if type -p screen >/dev/null; then
#如果存在的话，执行下列命令，执行安装和配置LANMP环境
screen -d -m -S $SCREEN_NAME -t lanmp -s /bin/bash
sleep 1.5
if [ -z "$SCREEN_HARDSTATUS" ]; then
SCREEN_HARDSTATUS='%{= .} %-Lw%{= .}%> %n%f %t*%{= .}%+Lw%< %-=%{g}(%{d}%H/%l%{g})'
fi
screen -r $SCREEN_NAME -X hardstatus alwayslastline "$SCREEN_HARDSTATUS"
NL=$(echo -ne '\015')
screen -S $SCREEN_NAME -p lanmp -X stuff \
"(./lanmp.sh|tee lanmp_ins.log);(./wdcp.sh|tee wdcp_ins.log)$NL"
screen -r $SCREEN_NAME
#如果不存在的话，则先安装screen这个命令
else
echo "Cannot find 'screen' command,install without screen(default yes)?"
sleep 0.1
read -p "(Yes/No): " i
case $i in
no|No|NO|n|N)
echo "Please install 'screen' before install lanmp."
echo "for ubuntu/debian: apt-get update && apt-get install screen"
echo "for CentOS/RHEL: yum update && yum install screen"
exit
;;
*)
./lanmp.sh|tee lanmp_ins.log
./wdcp.sh|tee wdcp_ins.log
;;
esac
fi
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