Using Help

There are several ways to get help and additional information in PowerShell:

The Help parameter - when you specify the -? parameter to any command, the command is not executed. Instead, Windows PowerShell displays help for the command. The syntax is:
```
<command_name> -?
```
To display the type and syntax of a command, enter:
```
get-command <command_name>
```
Each command has a detailed help file. To access the help file, enter:
```
get-help <command_name> -detailed
```
The detailed view of the command help file includes a description of the command, the command syntax, descriptions of the parameters, and example that demonstrate the use of the command.
To display help for a parameter in a command, after the parameter prompt enter !?:
```
<parameter_name>: !?
```

To display a list of available Windows PowerShell commands, enter:
```
get-command
```
To display a list of available Arcserve RHA PowerShell snap-in commands, enter:
```
get-command | where {$_.DLL -match "XO"} | format-table
```
To display a list of all aliases defined for XO commands, type:
```
alias xo*
```

To verify the installation of Arcserve RHA PowerShell snap-ins, enter the following command and look for Arcserve RHA PowerShell snap-ins:
```
get-pssnapin
```