$An_Array = @('somethingno1', 'somethingno2','morestuff')
$An_Array | Where-Object {$_ -match 'something'}


'somethingno1' -match 'something'


'somethingno1' -match 'nothing'


'The book is good' -replace 'The book', 'The ITA book'


> Get-Service | where {$_.status -like "running"}
> Get-Service | where {$_.status -match "running"}


. ^ $ [ ] { } * ? + \


> 'something.txt' -match 'i*'


> 'Thatistheone.txt' -match 'i*'


> 'itssomething.txt' -match '^i'


> 'Thatistheone.txt' -match '^i'


> 'something.txt' -match 't$'


> 'something.txt' -match 't$'
True
 **
> $matches
Name ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** Value
0 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** t


> $Teststring='Programming'
> $Teststring -match "\w"


> $Teststring -match "\W"


> $Teststring='Programm456ing
> $Teststring -match "\d"
True
 **
> $matches
Name ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** Value
0 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** 4


> $Teststring -match "\d+"
True
 **
> $matches
Name ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** Value
0 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** 456


> $Teststring -match "\d{2}"
True
 **
> $matches
Name ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** Value
0 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** 45


> $Teststring -match "\d{2,3}"


> $Input=  Read-Host "Please enter three digits followed by at least 4 but less than 8 letters!"


> $input -match "^\d{3}\w{4,8}$"


> $Teststring ='What is it To you, dude?'
> $Teststring -match "[wy]"
True


> $Teststring -match "[p-t]"
True
 **
$matches
Name ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** Value
0 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** t


> $Teststring='Hello678 again'
> $Teststring -match "[^a-z]"
True
 **
> $matches
Name ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** Value
0 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** 6


> $Teststring -match "[^a-z]+"
variant; the output in the <C>$matches<C> variable is then <I>678<I>.