Shell脚本典型应用

一 脚本场景


二 实现脚本
1、主控脚本实现
2、系统信息及系统状态分析
3、NginxMysqL应用状态分析
4、应用日志分析
三 场景脚本演示
[root@localhost ~]# cd monitor_man/
[root@localhost monitor_man]# ls
check_http_log.sh check_server.sh monitor_man.sh system_man.sh












四 该脚本学习意义
1、明白Shell使用用途
不懂shell能在我们的OP工作中起到什么作用,能做什么?
2、明白Shell使用特性
只是局限于几行脚本书写,没有系统明白shell的开发环境及使用特性。
3、明白shell对于资源监控功能作用
总结出linux系统的资源使用,以及每个性能参数含义。
4、概括总结系统、应用的运维知识
熟悉应用服务运行中,对于运维人员该如何有效进行监控。

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-->

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history显示历史指令记录内容,下达历史纪录中的指令主要的使用方法如果你想禁用history,可以将HISTSIZE设置为0:#exportHISTSIZE=0使用HISTIGNORE忽略历史中的特定命令下面的例子,将忽略pwd、ls、ls-ltr等命令:#exportHISTIGNORE=”pwd:ls:ls-ltr:”使用HIS
一.命令历史  1.history环境变量:    HISTSIZE:输出的命令历史条数,如history的记录数    HISTFILESIZE:~/.bash_history保存的命令历史记录数    HISTFILLE:历史记录的文件路径    HISTCONTROL:     ignorespace:忽略以空格开头的命令
之前在网上看到很多师傅们总结的linux反弹shell的一些方法,为了更熟练的去运用这些技术,于是自己花精力查了很多资料去理解这些命令的含义,将研究的成果记录在这里,所谓的反弹shell,指的是我们在自己的机器上开启监听,然后在被攻击者的机器上发送连接请求去连接我们的机器,将被攻击者的she
BashOne-LinersExplained,PartI:Workingwithfileshttps://catonmat.net/bash-one-liners-explained-part-oneBashOne-LinersExplained,PartII:Workingwithstringshttps://catonmat.net/bash-one-liners-explained-part-twoBashOne-LinersExplained,PartII
Shell中变量的作用域:在当前Shell会话中使用,全局变量。在函数内部使用,局部变量。可以在其他Shell会话中使用,环境变量。局部变量:默认情况下函数内的变量也是全局变量#!/bin/bashfunctionfunc(){a=99}funcecho$a输出>>99为了让全局变量变成局部变量
1、多命令顺序执行;  命令1;命令2  多个命令顺序执行,命令之间没有任何逻辑联系&&  命令1&&命令2  逻辑与,当命令1正确执行,才会执行命令2||  命令1||命令2  逻辑或,当命令1执行不正确,才会执行命令2例如:ls;date;cd/home/lsx;pwd;who ddif=输入文件of=输
原博文使用Linux或者unix系统的同学可能都对#!这个符号并不陌生,但是你真的了解它吗?首先,这个符号(#!)的名称,叫做"Shebang"或者"Sha-bang"。Linux执行文件时发现这个格式,会把!后的内容提取出来拼接在脚本文件或路径之前,当作实际执行的命令。 Shebang这个符号通常在Unix系统的脚本
1、历史命令history[选项][历史命令保存文件]选项:-c:  清空历史命令-w:  把缓存中的历史命令写入历史命令保存文件 ~/.bash_historyvim/etc/profile中的Histsize可改存储历史命令数量历史命令的调用使用上、下箭头调用以前的历史命令使用“!n”重复执行第n条历史
目录1.Shell脚本规范2.Shell脚本执行3.Shell脚本变量3.1环境变量3.1.1自定义环境变量3.1.2显示与取消环境变量3.1.3环境变量初始化与对应文件的生效顺序3.2普通变量3.2.1定义本地变量3.2.2shell调用变量3.2.3grep调用变量3.2.4awk调用变量3.3
   http://www.voidcn.com/blog/wszzdanm/article/p-6145895.html命令功能:显示登录用户的信息命令格式:常用选项:举例:w显示已经登录的用户及正在进行的操作[root@localhost~]#w 11:22:01up4days,21:22, 3users, loadaverage:0.00,0.00,0.00USER