Search notes:

PowerShell parameter attribute: alias

Question mark as parameter name

The Parameter attribute alias comes in handy to define a question mark parameters:

param (
   [alias('?')] [switch] $help
)

if ($help) {
  'help message'
   return
}

'doing stuff'

Github repository about-PowerShell, path: /language/statement/function/parameters/attributes/alias/qm.ps1

PS:> .\qm
doing stuff

PS:> .\qm -?
help message

Unfortunately, this technique does not seem to work when trying to alias an exclamation mark to a parameter.

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/Windows/...', 1759382554, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Windows/PowerShell/language/statement/function/parameters/attributes/alias/index(55): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78