shell脚本第二天

1.编写99乘法表

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#!/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】

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#/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