How to Use Environment variables in VBScript?

How to Use Environment variables in VBScript?

There are several ways to read or write environment variables:

  1. Use the WSH Shell object.
  2. Use WMI’s Win32_Environment class.
  3. Read/write the variables directly from/to the registry.

What is ExpandEnvironmentStrings?

The ExpandEnvironmentStrings method expands the environment variables in a string and returns the resulting string. Environment variables are case-insensitive and are enclosed by a pair of % characters. If an environment variable in strString is undefined, then it is left unchanged.

What are the types of environment variables in QTP?

Types of QTP environment variables

  • Built-in variables.
  • User-defined variables (Has 2 sub-types)
  • Internal.
  • External.

What is environment variables in vbscript?

The Environment property contains the WshEnvironment object (a collection of environment variables). If strType is supplied, it specifies where the environment variable resides with possible values of System, User, Volatile, or Process.

How do you delete an environment variable?

Delete Environment Variables You need to just use the unset command with the variable name to delete it. This command will remove the variable permanently.

How do I create a global variable in VBScript?

Variable scope in VBScript functions

  1. Dim = Local scope if the variable name doesn’t already exist globally (in which case it reuses the global variable!)
  2. Global = Forces creation of the variable in the Global scope.
  3. Local = Forces creation of the variable in the Local/Function scope.

What is Comspec environment variable?

COMSPEC or ComSpec is one of the environment variables used in DOS, OS/2 and Windows, which normally points to the command line interpreter, which is by default COMMAND.COM in DOS, Windows 95, 98, and ME or CMD. EXE in OS/2 and Windows NT. The variable name is written in all-uppercase under DOS and OS/2.

What is the use of user defined environment variables?

User-defined variables define any details that are used when creating a cluster. The following are the different types of user-defined variables that you can define: Single Value variables have values that the user cannot modify. The variable values are still shown when the cluster is created.

How do you declare a global variable in UFT?

Verified Answer

  1. Declare the global variable in a .VBS file. Define the variable in an external .
  2. Use the Global Data Sheet.
  3. Use the “Environment” object.
  4. Use a Dictionary object.
  5. Use arrays.
  6. Use Action and Test parameters.
  7. Use an external file to store the data.

How do you change a variable in VBA?

Setting variables In VBA, declaring variables is optional, but you can’t declare AND set the variable at the same time. We’ve added a line that assigns the value of a variable. In VBA, just append “. Value”, an equals sign, and the value you want to assign (in quotation marks).

How do you assign a value to a variable in Visual Basic?

To do so you would declare a variable with a name of your choice (such as interestRate) and specify the variable as an Integer type (since it will be storing a number). Having declared the variable you can assign a value to it and read that value anywhere in your application code.

How do I set a global variable in VBA?

Declare a Global Variable in VBA

  1. First, you need to use the keyword “Global”
  2. After that, declare the name of the variable.
  3. Next, type “as” to get the list of data types.
  4. In the end, select the data type that you want to declare for the variable.

How do I fix ComSpec variables?

Very easy fix:

  1. Just open Advanced System Settings in Control Panel and create a new System Variable( in the System Variable instead of User Variable section).
  2. In the variable name, enter ComSpec and then in the variable value , enter C:\Windows\system32\cmd.exe .

What is ComSpec used for?

(COMmand interpreter SPECification) A DOS/Windows environment variable that contains the path to the location of the system file that executes commands on the command line (COMMAND.COM in DOS and CMD. EXE in Windows).