The range operator is used to generate a sequential set of numbers
1..10 | foreach {$_}
if we try this with letters
PS> a..j | foreach {$_}
The term ‘a..j’ is not recognized as the name of a cmdlet, function, script file, or operable 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:5
+ a..j <<<< | foreach {$_}
+ CategoryInfo : ObjectNotFound: (a..j:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
However we can use the range operator to generate letters like this
## upper case
65..90 | foreach {"$_ $([char]$_)" }
## lower case
97..122 | foreach {"$_ $([char]$_)" }
using the ACSII codes. if we want to create filea.txt – filej.txt we can simply do this
97..106 | foreach {New-Item -Path c:\test -Name "file$([char]$_).txt" -ItemType File}
Nice and simple one line of PowerShell.