$sqlText1 = "IF NOT EXISTS (SELECT * FROM sys.tables WHERE object_id = object_id('Step1Table')) CREATE TABLE [dbo].[Step1Table]([TestId] [int] NOT NULL);" $sqlText2 = "IF NOT EXISTS (SELECT * FROM sys.tables WHERE object_id = object_id('Step2Table')) CREATE TABLE [dbo]...
The PowerShell command Copy-Item will overwrite a file if it exists by default. This is unless that file is marked Read Only in which case you can use the -Force switch to overwrite the file. What if you want to only copy the file if it doesn’t exist? Here's a quick ...
$AddModulesArray|ForEach-Object{If($_-notmatch $item){Write-Host Write-Host Installing $_ Install-Module-Name $_ Read-Host-Prompt"Press Enter to continue"}Else{If($_-match $item){Write-Host Write-Host $_ Already Exists Read-Host-Prompt"Press Enter to continue"}}} 此外,我知道使用`分隔...
Also remember that if the path or folder name contains a space, you need to surround the entire path in quotes. Single quotes or double quotes will work the same if there are no "expandable" parts in the path or folder name, but the slightly safer choice is single quotes. This is what...
WhatIfPreference False 查看变量类型 变量可以自动存储任何PowerShell能够识别的类型信息,可以通过$变量名.GetType()查看和验证PowerShell分配给变量的数据类型 PSC:/>$num=10PSC:/>$num.gettype()#方法不区分大小写IsPublicIsSerialNameBaseType---TrueTrueInt32System.ValueType 删除变量 如果不想继续使用自定义的变量...
check if a process or service is hanging/not responding? Check if a text file is blank in powershell check if computer exist in ou Check if drive exists, If not map Check if Email address exists in Office 365 and if exists, Create a Unique Email address Check if event log source exist...
powerline 字体letg:airline#extensions#tabline#enabled=1""显示窗口tab和buffer"let g:airline_theme='moloai' "murmur配色不错if!exists('g:airline_symbols')letg:airline_symbols={}endifletg:airline_left_sep='▶'letg:airline_left_alt_sep='❯'letg:airline_right_sep='◀'letg:airline_right_alt...
program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1 + Get-MrPSVersion + CategoryInfo : ObjectNotFound: (Get-MrPSVersion:String) [], CommandNotFou ndException + FullyQualifiedErrorId : CommandNotFound...
Use[System.IO.File]::Exists()to Check if a File Exists in PowerShell Another method to check if a file exists is[System.IO.File]::Exists(). It provides a Boolean result,Trueif the file exists orFalseif the file does not exist. ...
If the profile exists this command will return True; if it doesn’t exist, the command will return False. If this command returns False, you need to create the profile. Creating a profile in Windows XP is really easy. Simply type this at the command prompt: ...