shell脚本第二天

1.编写99乘法表

#!/bin/bash

for((i=1;i<10;i++))
  do
   for((j=1;j<=i;j++))
     do
       echo -n "$i $j = $(($i$j))"
       echo -n " "
     done
echo " "
  done

考查for循环的使用

2.nginx的安装脚本

3.nginx的启动脚本【启动命令】

#/bin/bash
nginx_path=/usr/local/nginx/sbin/nginx
params=$1

if [ -z $params ]
then
  echo "input params start or stop"
  exit
fi

case "$1" in
"start" )
   $nginx_path
   num=`ps aux | grep nginx | grep master | wc -l`
   if [ $num -gt 0 ]
   then
     echo "nginx is start"
   fi;;
"stop" )
   $nginx_path -s stop
   num=`ps aux | grep nginx | grep master | wc -l`
   if [ $num -eq 0 ]
   then
    echo "nginx is stop"
   fi;;
"reload" )
  $nginx_path -s reload
  echo "nginx is reload";;
esac