PowerShell Select-Object Property和ExpandProperty的差别#yyds干货盘点#

环境配置说明

Windows 21H1 PSVersion 5.1.19041.1320

示例

PS C:\Users\admin> Get-Alias | Select-Object -Property ModuleName | Get-Member TypeName:Selected.System.Management.Automation.AliasInfo Name MemberType Definition ---- ---------- ---------- Equals Method bool Equals(System.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() ModuleName NoteProperty string ModuleName=

PS C:\Users\admin> Get-Alias | Select-Object -ExpandProperty ModuleName | Get-Member TypeName:System.String Name MemberType Definition ---- ---------- ---------- Clone Method System.Object Clone(), System.Object ICloneable.Clone() CompareTo Method int CompareTo(System.Object value), int CompareTo(string strB), int IC... Contains Method bool Contains(string value) CopyTo Method void CopyTo(int sourceIndex, char[] destination, int destinationIndex,... EndsWith Method bool EndsWith(string value), bool EndsWith(string value, System.String... Equals Method bool Equals(System.Object obj), bool Equals(string value), bool Equals... GetEnumerator Method System.CharEnumerator GetEnumerator(), System.Collections.IEnumerator ... GetHashCode Method int GetHashCode() GetType Method type GetType() GetTypeCode Method System.TypeCode GetTypeCode(), System.TypeCode IConvertible.GetTypeCode() .....

-ExpandProperty ModuleName 的返回类型是 System.String ，更适合作参数，适用范围较广

PS C:\Users\admin> Get-Alias | Select-Object -Property ModuleName | Select-Object -First 10 ModuleName ---------- Microsoft.PowerShell.Utility

PS C:\Users\admin> Get-Alias | Select-Object -ExpandProperty ModuleName | Select-Object -First 10 Microsoft.PowerShell.Utility

学习资料

PowerShell 版本 + 工具 PowerShell/PowerShell 51CTO社区

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