about_environment_variables.help

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Sheet1 Page 1 TOPIC about_Environment_Variables SHORT DESCRIPTION Describes how to access Windows environment variables in Windows PowerShell. LONG DESCRIPTION Environment variables store information about the operating system environment. This information includes details such as the operating system path, the number of processors used by the operating system, and the location of temporary folders. The environment variables store data that is used by the operating system and other programs. For example, the WINDIR environment variable contains the location of the Windows installation directory. Programs can query the value of this variable to determine where Windows operating system files are located. Windows PowerShell lets you view and change Windows environment variables, including the variables set in the registry, and those set for a particular session. The Windows PowerShell environment provider simplifies this process by making it easy to view and change the environment variables. Unlike other types of variables in Windows PowerShell, environment variables and their values are inherited by child sessions, such as local background jobs and the sessions in which module members run. This makes environment variables well suited to storing values that are needed in both parent and child sessions. Windows PowerShell Environment Provider The Windows PowerShell environment provider lets you access Windows environment variables in Windows PowerShell in a Windows PowerShell drive (the Env: drive). This drive looks much like a file system drive. To go to the Env: drive, type: set-location env: Then, to display the contents of the Env: drive, type: get-childitem You can view the environment variables in the Env: drive from any other Windows PowerShell drive, and you can go into the Env: drive to view and change the environment variables.
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Sheet1 Page 2 Environment Variable Objects In Windows PowerShell, each environment variable is represented by an object that is an instance of the System.Collections.DictionaryEntry
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This note was uploaded on 11/03/2010 for the course BUS fin taught by Professor Fez during the Spring '10 term at Valparaiso.

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about_environment_variables.help - TOPIC...

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