April 2007
Intermediate to advanced
551 pages
12h 9m
English
Content preview from Professional Windows® PowerShell
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6.2. Common Parameters
Windows PowerShell supports six common parameters. As the name suggests, these parameters are available generally for use with all cmdlets.
The common parameters are:
Debug — A boolean value that specifies whether or not debugging information is collected. Debugging information is displayed only if the cmdlet supports generation of debugging information.
ErrorAction — Specifies behavior when an error is encountered. The allowed values are Continue (which is the default behavior), Stop, Silently Continue, and Inquire.
ErrorVariable — Specifies the name of a variable that stores error information. The specified variable is populated in addition to $error.
OutBuffer — Specifies the number of objects to buffer before calling the next cmdlet in the pipeline.
OutVariable — Specifies a variable to store the output of a command or pipeline.
Verbose — If this parameter is specified, then verbose output is generated, if the cmdlet supports verbose output. If the cmdlet does not support -verbose output, then the parameter has no effect.
Each of the common parameters has an abbreviation that you can use in its place, as shown in Table 6-1.
| Ubiquitous Parameter | Abbreviation |
|---|---|
| -Debug | -db |
| -ErrorAction | -ea |
| -ErrorVariable | -ev |
| -OutputBuffer | -ob |
| -OutputVariable | -ov |
| -Verbose | -vb |
If a cmdlet changes system state two other parameters are available:
Confirm — The user is asked to confirm an action before it is carried out.
WhatIf — The user is shown the actions that the system would have taken if ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.