Cycle through only specific file types in PS using custom tab completion on the command line
Use the Register-ArgumentCompleter cmdlet (PSv5+):
# With `java`, cycle through *.java files, but without the extension.Register-ArgumentCompleter -Native -CommandName java -ScriptBlock { param($wordToComplete) (Get-ChildItem $wordToComplete*.java).BaseName}# With `javac`, cycle through *.java files, but *with* the extension.Register-ArgumentCompleter -Native -CommandName javac -ScriptBlock { param($wordToComplete) (Get-ChildItem $wordToComplete*.java).Name}To define an alternative key or chord for invoking completion, use Set-PSReadLineKeyHandler; e.g., to make Ctrl+K invoke completions:
Set-PSReadLineKeyHandler -Key ctrl+k -Function TabCompleteNextSet-PSReadLineKeyHandler -Key ctrl+shift+k -Function TabCompletePreviousNote that this affects completion globally - you cannot implement a command-specific completion key that way.