ColorConsole [Version 1.7.1000] PowerShell 2.0-Export
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.
C:\Windows-7>Powershell get-help Measure-Object -full
# NAME
Measure-Object
# SYNOPSIS
Calculates the numeric properties of objects, and the characters, words, and lines in string objects, such as files of text.
# SYNTAX
Measure-Object [-Average
] [-Maximum
] [-Minimum
] [-Sum
] [[-Property
] <string
[]>
] [-InputObject <psobject>
] [<CommonParameters>
]
Measure-Object [-Character
] [-IgnoreWhiteSpace
] [-Line
] [-Word
] [[-Property
] <string
[]>
] [-InputObject <psobject>
] [<CommonParameters>
]
# DESCRIPTION
The
Measure-Object cmdlet calculates the property values of certain types of object.
Measure-Object performs three types of measurements, depending on the parameters in the command.
The
Measure-Object cmdlet performs calculations on the property values of objects. It can count objects and calculate the minimum, maximum, sum, and average of the numeric values. For text objects, it can count and calculate the number of lines, words, and characters.
# PARAMETERS
-Average [<SwitchParameter>
]
Displays the average value of the specified properties.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Character [<SwitchParameter>
]
Counts the number of characters in the input object.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-IgnoreWhiteSpace [<SwitchParameter>
]
Ignores white space in word counts and character counts. By default, white space is not ignored.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-InputObject <psobject>
Specifies the objects to be measured. Enter a
variable that contains the objects, or type a command or expression that gets the objects.
Required? false
Position? named
Default value
Accept pipeline input? true
(ByValue
)
Accept wildcard characters? false
-Line [<SwitchParameter>
]
Counts the number of lines in the input object.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Maximum [<SwitchParameter>
]
Displays the maximum value of the specified properties.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Minimum [<SwitchParameter>
]
Displays the minimum value of the specified properties.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Property <string
[]>
Specifies one or more numeric properties to measure. The
default is the Count
(Length
) property of the object.
Required? false
Position? 1
Default value Count
Accept pipeline input? false
Accept wildcard characters? false
-Sum [<SwitchParameter>
]
Displays the sum of the values of the specified properties.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
-Word [<SwitchParameter>
]
Counts the number of words in the input object.
Required? false
Position? named
Default value
Accept pipeline input? false
Accept wildcard characters? false
<CommonParameters>
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer and OutVariable. For more information, type,
"
get-help about_commonparameters".
# INPUTS
System.Management.Automation.PSObject
You can pipe objects to Measure-Object.
# OUTPUTS
GenericMeasureInfo or TextMeasureInfoObject
# NOTES
# EXAMPLE 1
C:\PS>get-childitem |
measure-object
# Description
-----------
This command counts the files and folders in the current directory.
# EXAMPLE 2
C:\PS>get-childitem |
measure-object -property length -minimum -maximum -average
# Description
-----------
This command displays the minimum, maximum, and sum of the sizes of all files in the current directory, and the average size of a file in the directory.
# EXAMPLE 3
C:\PS>get-content C:\test.txt |
measure-object -character -line -word
# Description
-----------
This command displays the number of characters, words, and lines in the Text.txt file.
# EXAMPLE 4
C:\PS>get-process |
measure-object -property workingset -minimum -maximum -average
# Description
-----------
This command displays the minimum, maximum, and average sizes of the working sets of the processes on the computer.
# EXAMPLE 5
C:\PS>import-csv d:\test\serviceyrs.csv |
measure-object -property years -minimum -maximum -average
# Description
-----------
This command calculates the average years of service of the employees of a company.
The ServiceYrs.csv file is a CSV file that contains the employee number and years of service of each employee. The first row in the table is a header row of "EmpNo, Years".
When you use
Import-Csv to import the file, the result is a PSCustomObject with note properties of EmpNo and Years. You can use
Measure-Object to calculate the values of these properties, just like any other property of an object.
# EXAMPLE 6
C:\PS>get-childitem |
measure-object -property psiscontainer -max -sum -min -average
Count : 126
Average : 0.0634920634920635
Sum : 8
Maximum : 1
Minimum : 0
Property : PSIsContainer
# Description
-----------
This example demonstrates the
Measure-Object can measure Boolean values. In this case, it uses the PSIsContainer Boolean property to measure the incidence of folders
(vs. files
) in the current directory.
RELATED LINKS
Online version: http://go.microsoft.com/fwlink/?LinkID=113349
Compare-Object
ForEach-Object
Group-Object
New-Object
Select-Object
Sort-Object
Tee-Object
Where-Object
C:\Windows>powershell
get-help New-Alias -full
