Powertip of the day from powershell.com last week Summary (6)

RestrictionsStringType parameter length

Limiting string input length

Http://powershell.com/cs/blogs/tips/archive/2010/08/23/limiting-string-input-length.aspx

Function get-filename {
Param (
[Validatelength (1, 8)]
[String]
$ Filename
)
"Your filename {0} is {1} chars long"-F $ filename, $ filename. Length
}

Call exampleGet-FILENAME "win.txt"

 

 

Use regular expressions to verify input parameters

Validate input using regular expressions

Http://powershell.com/cs/blogs/tips/archive/2010/08/24/validate-input-using-regular-expressions.aspx

Function get-knowledgebasearticle {
Param (
[Validatepattern ('^ KB \ D {6} $')]
[String]
$ KB
)
"You entered Knowledgebase ID $ kb"
}

Call exampleGet-knowledgebasearticle-kb "kb123456"

 

 

UsePowershellView object types

Finding object types with powershell

Http://powershell.com/cs/blogs/tips/archive/2010/08/25/finding-object-types-with-powershell.aspx

'Hallo'. GetType (). fullname
(4). GetType (). fullname
(2.6). GetType (). fullname
(Get-date). GetType (). fullname

Result:

System. String

System. int32

System. Double

System. datetime

 

 

Conversion object type

Converting Object Types

Http://powershell.com/cs/blogs/tips/archive/2010/08/26/converting-object-types.aspx

[Datetime] '4. 5.2010'

To obtain the local date format, follow these steps:

[Datetime]: parse ('4. 5.2010 ')

Actually equivalent. NET FrameworkUnderDatetime. parst (string ).

 

 

Limit the number parameter range

Restrict input to numeric ranges

Http://powershell.com/cs/blogs/tips/archive/2010/08/27/restrict-input-to-numeric-ranges.aspx

Function set-cursorsize {
Param (
[Validaterange (1,100)]
[Int]
$ Percent
)
$ Host. UI. rawui. cursorsize = $ percent
}

PairIntType parameter to set a range limit.

Mainly through[Validatexxxx]

 

 

 

 

 

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